Named entities, numeric entities and ISO numeric codes (PDF, source)

Special characters for (X)HTML

Clicking on a table cell automatically selects its content for easy copying/pasting. Thanks to Reddit user maktouch for the code.

Name Numeric Description Hex ISO in CSS content Octal

" " " quotation mark, a.k.a. apl quote u+0022 ISOnum p:before { content:"\0022"; } alert("\42")

& & & ampersand u+0026 ISOnum p:before { content:"\0026"; } alert("\46")

< ; < < less-than sign u+003C ISOnum p:before { content:"\003c"; } alert("\74");

> ; > > greater-than sign u+003E ISOnum p:before { content:"\003e"; } alert("\76");

Latin-1 entity set for HTML

no-break space %A0 p:before { content:"\00a0"; } alert("\240");

¡ ¡ ¡ inverted exclamation mark %A1 p:before { content:"\00a1"; } alert("\241");

¢ ¢ ¢ cent sign %A2 p:before { content:"\00a2"; } alert("\242");

£ £ £ pound sterling sign %A3 p:before { content:"\00a3"; } alert("\243");

¤ ¤ ¤ general currency sign %A4 p:before { content:"\00a4"; } alert("\244");

¥ ¥ ¥ yen sign %A5 p:before { content:"\00a5"; } alert("\245");

¦ ¦ ¦ broken (vertical) bar %A6 p:before { content:"\00a6"; } alert("\246");

§ § § section sign %A7 p:before { content:"\00a7"; } alert("\247");

¨ ¨ ¨ umlaut (dieresis) %A8 p:before { content:"\00a8"; } alert("\250");

© © © copyright sign %A9 p:before { content:"\00a9"; } alert("\251");

ª ª ª ordinal indicator, feminine %AA p:before { content:"\00aa"; } alert("\252");

« « « angle quotation mark, left %AB p:before { content:"\00ab"; } alert("\253");

¬ ¬ ¬ not sign %AC p:before { content:"\00ac"; } alert("\254");

­ ­ ­ soft hyphen %AD p:before { content:"\00ad"; } alert("\255");

® ® ® registered sign %AE p:before { content:"\00ae"; } alert("\256");

¯ ¯ ¯ macron %AF p:before { content:"\00af"; } alert("\257");

° ° ° degree sign %B0 p:before { content:"\00b0"; } alert("\260");

± ± ± plus-or-minus sign %B1 p:before { content:"\00b1"; } alert("\261");

² ² ² superscript two %B2 p:before { content:"\00b2"; } alert("\262");

³ ³ ³ superscript three %B3 p:before { content:"\00b3"; } alert("\263");

´ ´ ´ acute accent %B4 p:before { content:"\00b4"; } alert("\264");

µ µ µ micro sign %B5 p:before { content:"\00b5"; } alert("\265");

¶ ¶ ¶ pilcrow (paragraph sign) %B6 p:before { content:"\00b6"; } alert("\266");

· · · middle dot %B7 p:before { content:"\00b7"; } alert("\267");

¸ ¸ ¸ cedilla %B8 p:before { content:"\00b8"; } alert("\270");

¹ ¹ ¹ superscript one %B9 p:before { content:"\00b9"; } alert("\271");

º º º ordinal indicator, masculine %BA p:before { content:"\00ba"; } alert("\272");

» » » angle quotation mark, right %BB p:before { content:"\00bb"; } alert("\273");

¼ ¼ ¼ fraction one-quarter %BC p:before { content:"\00bc"; } alert("\274");

½ ½ ½ fraction one-half %BD p:before { content:"\00bd"; } alert("\275");

¾ ¾ ¾ fraction three-quarters %BE p:before { content:"\00be"; } alert("\276");

¿ ¿ ¿ inverted question mark %BF p:before { content:"\00bf"; } alert("\277");

À À À capital A, grave accent %C0 p:before { content:"\00c0"; } alert("\300");

Á Á Á capital A, acute accent %C1 p:before { content:"\00c1"; } alert("\301");

Â Â Â capital A, circumflex accent %C2 p:before { content:"\00c2"; } alert("\302");

Ã Ã Ã capital A, tilde %C3 p:before { content:"\00c3"; } alert("\303");

Ä Ä Ä capital A, dieresis or umlaut mark %C4 p:before { content:"\00c4"; } alert("\304");

Å Å Å capital A, ring %C5 p:before { content:"\00c5"; } alert("\305");

Æ Æ Æ capital AE diphthong (ligature) %C6 p:before { content:"\00c6"; } alert("\306");

Ç Ç Ç capital C, cedilla %C7 p:before { content:"\00c7"; } alert("\307");

È È È capital E, grave accent %C8 p:before { content:"\00c8"; } alert("\310");

É É É capital E, acute accent %C9 p:before { content:"\00c9"; } alert("\311");

Ê Ê Ê capital E, circumflex accent %CA p:before { content:"\00ca"; } alert("\312");

Ë Ë Ë capital E, dieresis or umlaut mark %CB p:before { content:"\00cb"; } alert("\313");

Ì Ì Ì capital I, grave accent %CC p:before { content:"\00cc"; } alert("\314");

Í Í Í capital I, acute accent %CD p:before { content:"\00cd"; } alert("\315");

Î Î Î capital I, circumflex accent %CE p:before { content:"\00ce"; } alert("\316");

Ï Ï Ï capital I, dieresis or umlaut mark %CF p:before { content:"\00cf"; } alert("\317");

Ð Ð Ð capital Eth, Icelandic %D0 p:before { content:"\00d0"; } alert("\320");

Ñ Ñ Ñ capital N, tilde %D1 p:before { content:"\00d1"; } alert("\321");

Ò Ò Ò capital O, grave accent %D2 p:before { content:"\00d2"; } alert("\322");

Ó Ó Ó capital O, acute accent %D3 p:before { content:"\00d3"; } alert("\323");

Ô Ô Ô capital O, circumflex accent %D4 p:before { content:"\00d4"; } alert("\324");

Õ Õ Õ capital O, tilde %D5 p:before { content:"\00d5"; } alert("\325");

Ö Ö Ö capital O, dieresis or umlaut mark %D6 p:before { content:"\00d6"; } alert("\326");

× × × multiply sign %D7 p:before { content:"\00d7"; } alert("\327");

Ø Ø Ø capital O, slash %D8 p:before { content:"\00d8"; } alert("\330");

Ù Ù Ù capital U, grave accent %D9 p:before { content:"\00d9"; } alert("\331");

Ú Ú Ú capital U, acute accent %DA p:before { content:"\00da"; } alert("\332");

Û Û Û capital U, circumflex accent %DB p:before { content:"\00db"; } alert("\333");

Ü Ü Ü capital U, dieresis or umlaut mark %DC p:before { content:"\00dc"; } alert("\334");

Ý Ý Ý capital Y, acute accent %DD p:before { content:"\00dd"; } alert("\335");

Þ Þ Þ capital THORN, Icelandic %DE p:before { content:"\00de"; } alert("\336");

ß ß ß small sharp s, German (sz ligature) %DF p:before { content:"\00df"; } alert("\337");

à à à small a, grave accent %E0 p:before { content:"\00e0"; } alert("\340");

á á á small a, acute accent %E1 p:before { content:"\00e1"; } alert("\341");

â â â small a, circumflex accent %E2 p:before { content:"\00e2"; } alert("\342");

ã ã ã small a, tilde %E3 p:before { content:"\00e3"; } alert("\343");

ä ä ä small a, dieresis or umlaut mark %E4 p:before { content:"\00e4"; } alert("\344");

å å å small a, ring %E5 p:before { content:"\00e5"; } alert("\345");

æ æ æ small ae diphthong (ligature) %E6 p:before { content:"\00e6"; } alert("\346");

ç ç ç small c, cedilla %E7 p:before { content:"\00e7"; } alert("\347");

è è è small e, grave accent %E8 p:before { content:"\00e8"; } alert("\350");

é é é small e, acute accent %E9 p:before { content:"\00e9"; } alert("\351");

ê ê ê small e, circumflex accent %EA p:before { content:"\00ea"; } alert("\352");

ë ë ë small e, dieresis or umlaut mark %EB p:before { content:"\00eb"; } alert("\353");

ì ì ì small i, grave accent %EC p:before { content:"\00ec"; } alert("\354");

í í í small i, acute accent %ED p:before { content:"\00ed"; } alert("\355");

î î î small i, circumflex accent %EE p:before { content:"\00ee"; } alert("\356");

ï ï ï small i, dieresis or umlaut mark %EF p:before { content:"\00ef"; } alert("\357");

ð ð ð small eth, Icelandic %F0 p:before { content:"\00f0"; } alert("\360");

ñ ñ ñ small n, tilde %F1 p:before { content:"\00f1"; } alert("\361");

ò ò ò small o, grave accent %F2 p:before { content:"\00f2"; } alert("\362");

ó ó ó small o, acute accent %F3 p:before { content:"\00f3"; } alert("\363");

ô ô ô small o, circumflex accent %F4 p:before { content:"\00f4"; } alert("\364");

õ õ õ small o, tilde %F5 p:before { content:"\00f5"; } alert("\365");

ö ö ö small o, dieresis or umlaut mark %F6 p:before { content:"\00f6"; } alert("\366");

÷ ÷ ÷ divide sign %F7 p:before { content:"\00f7"; } alert("\367");

ø ø ø small o, slash %F8 p:before { content:"\00f8"; } alert("\370");

ù ù ù small u, grave accent %F9 p:before { content:"\00f9"; } alert("\371");

ú ú ú small u, acute accent %FA p:before { content:"\00fa"; } alert("\372");

û û û small u, circumflex accent %FB p:before { content:"\00fb"; } alert("\373");

ü ü ü small u, dieresis or umlaut mark %FC p:before { content:"\00fc"; } alert("\374");

ý ý ý small y, acute accent %FD p:before { content:"\00fd"; } alert("\375");

þ þ þ small thorn, Icelandic %FE p:before { content:"\00fe"; } alert("\376");

ÿ ÿ ÿ small y, dieresis or umlaut mark %FF p:before { content:"\00ff"; } alert("\377");

Latin Extended-A

Œ Œ Œ latin capital ligature oe u+0152 ISOlat2 p:before { content:"\0152"; } alert("\u0152");

œ œ œ latin small ligature oe (ligature is a misnomer, this is a separate character in some languages) u+0153 ISOlat2 p:before { content:"\0153"; } alert("\u0153");

Š Š Š latin capital letter s with caron u+0160 ISOlat2 p:before { content:"\0160"; } alert("\u0160");

š š š latin small letter s with caron u+0161 ISOlat2 p:before { content:"\0161"; } alert("\u0161");

Ÿ Ÿ Ÿ latin capital letter y with diaeresis u+0178 ISOlat2 p:before { content:"\0178"; } alert("\u0178");

Mathematical, Greek and Symbolic characters for HTML (& spacing modifiers)

Latin Extended-B

ƒ ƒ ƒ latin small f with hook, a.k.a. function, a.k.a. florin u+0192 ISOtech p:before { content:"\0192"; } alert("\u0192");

Spacing Modifier Letters

ˆ ˆ modifier letter circumflex accent u+02C6 ISOpub p:before { content:"\02c6"; } alert("\u02c6");

˜ ˜ small tilde u+02DC ISOdia p:before { content:"\02dc"; } alert("\u02dc");

Greek

Α Α Α greek capital letter alpha u+0391 p:before { content:"\0391"; } alert("\u0391");

Β Β Β greek capital letter beta u+0392 p:before { content:"\0392"; } alert("\u0392");

Γ Γ Γ greek capital letter gamma u+0393 ISOgrk3 p:before { content:"\0393"; } alert("\u0395");

Δ Δ Δ greek capital letter delta u+0394 ISOgrk3 p:before { content:"\0394"; } alert("\u0394");

Ε Ε Ε greek capital letter epsilon u+0395 p:before { content:"\0395"; } alert("\u0395");

Ζ Ζ Ζ greek capital letter zeta u+0396 p:before { content:"\0396"; } alert("\u0396");

&Eta ; Η Η greek capital letter eta u+0397 p:before { content:"\0397"; } alert("\u0397");

Θ Θ Θ greek capital letter theta u+0398 ISOgrk3 p:before { content:"\0398"; } alert("\u0398");

Ι Ι Ι greek capital letter iota u+0399 p:before { content:"\0399"; } alert("\u0399");

Κ Κ Κ greek capital letter kappa u+039A p:before { content:"\039a"; } alert("\u039a");

Λ Λ Λ greek capital letter lambda u+039B ISOgrk3 p:before { content:"\039b"; } alert("\u039b");

&Mu ; Μ Μ greek capital letter mu u+039C p:before { content:"\039c"; } alert("\u039c");

&Nu ; Ν Ν greek capital letter nu u+039D p:before { content:"\039d"; } alert("\u039D");

&Xi ; Ξ Ξ greek capital letter xi u+039E ISOgrk3 p:before { content:"\039e"; } alert("\u039e");

Ο Ο Ο greek capital letter omicron u+039F p:before { content:"\039f"; } alert("\u039f");

&Pi ; Π Π greek capital letter pi u+03A0 ISOgrk3 p:before { content:"\03a0"; } alert("\u03a0");

&Rho ; Ρ Ρ greek capital letter rho u+03A1 p:before { content:"\03a1"; } alert("\u03a1");

there is no Sigmaf, and no u+03A2 character either)

Σ Σ Σ greek capital letter sigma u+03A3 ISOgrk3 p:before { content:"\03a3"; } alert("\u03A3");

&Tau ; Τ Τ greek capital letter tau u+03A4 p:before { content:"\03a4"; } alert("\u03A4");

Υ Υ Υ greek capital letter upsilon u+03A5 ISOgrk3 p:before { content:"\03a5"; } alert("\u03A5");

&Phi ; Φ Φ greek capital letter phi u+03A6 ISOgrk3 p:before { content:"\03a6"; } alert("\u03A6");

&Chi ; Χ Χ greek capital letter chi u+03A7 p:before { content:"\03a7"; } alert("\u03A7");

&Psi ; Ψ Ψ greek capital letter psi u+03A8 ISOgrk3 p:before { content:"\03a8"; } alert("\u03A8");

Ω Ω Ω greek capital letter omega u+03A9 ISOgrk3 p:before { content:"\03a9"; } alert("\u03A9");

α α α greek small letter alpha u+03B1 ISOgrk3 p:before { content:"\03b1"; } alert("\u03b1");

β β β greek small letter beta u+03B2 ISOgrk3 p:before { content:"\03b2"; } alert("\u03b2");

γ γ γ greek small letter gamma u+03B3 ISOgrk3 p:before { content:"\03b3"; } alert("\u03b3");

δ δ δ greek small letter delta u+03B4 ISOgrk3 p:before { content:"\03b4"; } alert("\u03b4");

ε ε ε greek small letter epsilon u+03B5 ISOgrk3 p:before { content:"\03b5"; } alert("\u03b5");

ζ ζ ζ greek small letter zeta u+03B6 ISOgrk3 p:before { content:"\03b6"; } alert("\u03b6");

&eta ; η η greek small letter eta u+03B7 ISOgrk3 p:before { content:"\03b7"; } alert("\u03b7");

θ θ θ greek small letter theta u+03B8 ISOgrk3 p:before { content:"\03b8"; } alert("\u03b8");

ι ι ι greek small letter iota u+03B9 ISOgrk3 p:before { content:"\03b9"; } alert("\u03b9");

κ κ κ greek small letter kappa u+03BA ISOgrk3 p:before { content:"\03ba"; } alert("\u03ba");

λ λ λ greek small letter lambda u+03BB ISOgrk3 p:before { content:"\03bb"; } alert("\u03bb");

&mu ; μ μ greek small letter mu u+03BC ISOgrk3 p:before { content:"\03bc"; } alert("\u03bc");

&nu ; ν ν greek small letter nu u+03BD ISOgrk3 p:before { content:"\03bd"; } alert("\u03bd");

&xi ; ξ ξ greek small letter xi u+03BE ISOgrk3 p:before { content:"\03be"; } alert("\u03be");

ο ο ο greek small letter omicron u+03BF NEW p:before { content:"\03bf"; } alert("\u03bf");

&pi ; π π greek small letter pi u+03C0 ISOgrk3 p:before { content:"\03c0"; } alert("\u03c0");

&rho ; ρ ρ greek small letter rho u+03C1 ISOgrk3 p:before { content:"\03c1"; } alert("\u03c1");

ς ς ς greek small letter final sigma u+03C2 ISOgrk3 p:before { content:"\03C2"; } alert("\u03c2");

σ σ σ greek small letter sigma u+03C3 ISOgrk3 p:before { content:"\03C3"; } alert("\u03c3");

&tau ; τ τ greek small letter tau u+03C4 ISOgrk3 p:before { content:"\03C4"; } alert("\u03c4");

υ υ υ greek small letter upsilon u+03C5 ISOgrk3 p:before { content:"\03C5"; } alert("\u03c5");

&phi ; φ φ greek small letter phi u+03C6 ISOgrk3 p:before { content:"\03C6"; } alert("\03c6");

&chi ; χ χ greek small letter chi u+03C7 ISOgrk3 p:before { content:"\03C7"; } alert("\u03c7");

&psi ; ψ ψ greek small letter psi u+03C8 ISOgrk3 p:before { content:"\03C8"; } alert("\u03c8");

ω ω ω greek small letter omega u+03C9 ISOgrk3 p:before { content:"\03C9"; } alert("\u03c9");

ϑ ϑ ϑ greek small letter theta symbol u+03D1 NEW p:before { content:"\03D1"; } alert("\u03D1");

ϒ ϒ ϒ greek upsilon with hook symbol u+03D2 NEW p:before { content:"\03D2"; } alert("\u03D2");

&piv ; ϖ ϖ greek pi symbol u+03D6 ISOgrk3 p:before { content:"\03D6"; } alert("\u03D6");

General Punctuation

en space u+2002 ISOpub p:before { content:"\2002";} alert("\u2002");

em space u+2003 ISOpub p:before { content:"\2003";} alert("\u2003");

thin space u+2009 ISOpub p:before { content:"\2009";} alert("\u2009");

‌ ‌ ‌ zero width non-joiner u+200C NEW RFC 2070 p:before { content:"\200C";} alert("\u200C");

‍ ‍ ‍ zero width joiner u+200D NEW RFC 2070 p:before { content:"\200D";} alert("\u200d");

‎ ‎ ‎ left-to-right mark u+200E NEW RFC 2070 p:before { content:"\200E";} alert("\u200e");

‏ ‏ ‏ right-to-left mark u+200F NEW RFC 2070 p:before { content:"\200F";} alert("\u200f");

– – – en dash u+2013 ISOpub p:before { content:"\2013";} alert("\u2013");

— — — em dash u+2014 ISOpub p:before { content:"\2014";} alert("\u2014");

‘ ‘ ‘ left single quotation mark u+2018 ISOnum p:before { content:"\2018";} alert("\u2018");

’ ’ ’ right single quotation mark u+2019 ISOnum p:before { content:"\2019";} alert("\u2019");

‚ ‚ ‚ single low-9 quotation mark u+201A NEW p:before { content:"\201A";} alert("\u201a");

“ “ “ left double quotation mark u+201C ISOnum p:before { content:"\201C";} alert("\u201c");

” ” ” right double quotation mark u+201D ISOnum p:before { content:"\201D";} alert("\u201d");

„ „ „ double low-9 quotation mark u+201E NEW p:before { content:"\201E";} alert("\u201e");

† † † dagger u+2020 ISOpub p:before { content:"\2020";} alert("\u2020");

‡ ‡ ‡ double dagger u+2021 ISOpub p:before { content:"\2021";} alert("\u2021");

‰ ‰ ‰ per mille sign u+2030 ISOtech p:before { content:"\2030";} alert("\u2030");

‹ ‹ ‹ single left-pointing angle quotation mark (lsaquo is proposed but not yet ISO standardised) u+2039 ISO proposed p:before { content:"\2039";} alert("\u2039");

› › › single right-pointing angle quotation mark rsaquo is proposed but not yet ISO standardised u+203A ISO proposed p:before { content:"\203A";} alert("\u203a");

• • • bullet, a.k.a. black small circle bullet is NOT the same as bullet operator — u+2219 u+2022 ISOpub alert("\u2219");

… … … horizontal ellipsis, a.k.a. three dot leader u+2026 ISOpub alert("\u2026");

′ ′ ′ prime, a.k.a. minutes, a.k.a. feet u+2032 ISOtech alert("\u2032");

″ ″ ″ double prime, a.k.a. seconds, a.k.a. inches u+2033 ISOtech alert("\u2033");

‾ ‾ ‾ overline, a.k.a. spacing overscore u+203E NEW alert("\u203e");

⁄ ⁄ ⁄ fraction slash u+2044 NEW alert("\u8260");

Letterlike Symbols

℘ ℘ ℘ script capital P, a.k.a. power set, a.k.a. Weierstrass p u+2118 ISOamso alert("\u2118");

ℑ ℑ ℑ blackletter capital I, a.k.a. imaginary part u+2111 ISOamso alert("\u2111");

ℜ ℜ ℜ blackletter capital R, a.k.a. real part symbol u+211C ISOamso alert("\u211c");

™ ™ ™ trade mark sign u+2122 ISOnum alert("\u2122");

ℵ ℵ ℵ alef symbol, a.k.a. first transfinite cardinal alef symbol is NOT the same as hebrew letter alef — u+05D0 although the same glyph could be used to depict both characters u+2135 NEW alert("\u");

Arrows

← ← ← leftwards arrow u+2190 ISOnum alert("\u2190");

↑ ↑ ↑ upwards arrow u+2191 ISOnum alert("\u2191");

→ → → rightwards arrow u+2192 ISOnum alert("\u2192");

↓ ↓ ↓ downwards arrow u+2193 ISOnum alert("\u2193");

↔ ↔ ↔ left right arrow u+2194 ISOamsa alert("\u2194");

↵ ↵ ↵ downwards arrow with corner leftwards, a.k.a. carriage return u+21B5 NEW alert("\u21b5");

⇐ ⇐ ⇐ leftwards double arrow can be used for ‘is implied by’ u+21D0 ISOtech alert("\u21d0");

⇑ ⇑ ⇑ upwards double arrow u+21D1 ISOamsa alert("\u21d1");

⇒ ⇒ ⇒ rightwards double arrow u+21D2 ISOtech alert("\u21d2");

⇓ ⇓ ⇓ downwards double arrow u+21D3 ISOamsa alert("\ud1d3");

⇔ ⇔ ⇔ left right double arrow u+21D4 ISOamsa alert("\u21d4");

Mathematical Operators

∀ ∀ ∀ for all u+2200 ISOtech alert("\u2200");

∂ ∂ ∂ partial differential u+2202 ISOtech alert("\u2202");

∃ ∃ ∃ there exists u+2203 ISOtech alert("\u2203");

∅ ∅ ∅ empty set, a.k.a. null set, a.k.a. diameter u+2205 ISOamso alert("\u2205");

∇ ∇ ∇ nabla, a.k.a. backward difference u+2207 ISOtech alert("\u2207");

∈ ∈ ∈ element of u+2208 ISOtech alert("\u2208");

∉ ∉ ∉ not an element of u+2209 ISOtech alert("\u2209");

&ni ; ∋ ∋ contains as member u+220B ISOtech alert("\u220b");

∏ ∏ ∏ n-ary product, a.k.a. product sign prod is NOT the same character as u+03A0 ‘greek capital letter pi’ though the same glyph might be used for both u+220F ISOamsb alert("\u03a0");

&sum ; ∑ ∑ n-ary sumation sum is NOT the same character as u+03A3 ‘greek capital letter sigma’ though the same glyph might be used for both u+2211 ISOamsb alert("\u03a3");

− − − minus sign u+2212 ISOtech alert("\u2212");

∗ ∗ ∗ asterisk operator u+2217 ISOtech alert("\u2217");

√ √ √ square root, a.k.a. radical sign u+221A ISOtech alert("\u221a");

∝ ∝ ∝ proportional to u+221D ISOtech alert("\u221d");

∞ ∞ ∞ infinity u+221E ISOtech alert("\u221e");

&ang ; ∠ ∠ angle u+2220 ISOamso alert("\u2220");

&and ; ⊥ ⊥ logical and, a.k.a. wedge u+2227 ISOtech alert("\u2227");

&or ; ⊦ ⊦ logical or, a.k.a. vee u+2228 ISOtech alert("\u2228");

&cap ; ∩ ∩ intersection, a.k.a. cap u+2229 ISOtech alert("\u2229");

&cup ; ∪ ∪ union, a.k.a. cup u+222A ISOtech alert("\u222a");

&int ; ∫ ∫ integral u+222B ISOtech alert("\u222b");

∴ ∴ ∴ therefore u+2234 ISOtech alert("\u2234");

&sim ; ∼ ∼ tilde operator, a.k.a. varies with, similar to tilde operator, but is NOT the same character as the tilde u+007E, although the same glyph might be used to represent both u+223C ISOtech alert("\u223c");

≅ ≅ ≅ approximately equal to u+2245 ISOtech alert("\u2245");

≈ ≈ ≈ almost equal to, a.k.a. asymptotic to u+2248 ISOamsr alert("\u2248");

&ne ; ≠ ≠ not equal to u+2260 ISOtech alert("\u2260");

≡ ≡ ≡ identical to u+2261 ISOtech alert("\u2261");

&le ; ≤ ≤ less-than or equal to u+2264 ISOtech alert("\u2264");

&ge ; ≥ ≥ greater-than or equal to u+2265 ISOtech alert("\u2265");

&sub ; ⊂ ⊂ subset of u+2282 ISOtech alert("\u2282");

&sup ; ⊃ ⊃ note that nsup, ‘not a superset of u+2283′ is not covered by the Symbol font encoding and is not included. u+2283 ISOtech alert("\u2283");

⊄ ⊄ ⊄ not a subset of u+2284 ISOamsn alert("\u2284");

⊆ ⊆ ⊆ subset of or equal to u+2286 ISOtech alert("\u2286");

⊇ ⊇ ⊇ superset of or equal to u+2287 ISOtech alert("\u2287");

⊕ ⊕ ⊕ circled plus, a.k.a. direct sum u+2295 ISOamsb alert("\u2295");

⊗ ⊗ ⊗ circled times, a.k.a. vector product u+2297 ISOamsb alert("\u2297");

⊥ ⊥ ⊥ up tack, a.k.a. orthogonal to, a.k.a. perpendicular u+22A5 ISOtech alert("\u22a5");

⋅ ⋅ ⋅ dot operator is NOT the same character as u+00B7 middle dot u+22C5 ISOamsb alert("\u22c5");

Miscellaneous Technical

⌈ ⌈ ⌈ left ceiling, a.k.a. apl upstile u+2308, ISOamsc alert("\u2308");

⌉ ⌉ ⌉ right ceiling u+2309, ISOamsc alert("\u2309");

⌊ ⌊ ⌊ left floor, a.k.a. apl downstile u+230A, ISOamsc alert("\u230a");

⌋ ⌋ ⌋ right floor u+230B, ISOamsc alert("\u230b");

⟨ 〈 〈 left-pointing angle bracket, a.k.a. bra lang is NOT the same character as u+003C ‘less than’ or u+2039 ‘single left-pointing angle quotation mark’ u+2329 ISOtech alert("\u2329");

⟩ 〉 〉 right-pointing angle bracket, a.k.a. ket rang is NOT the same character as u+003E ‘greater than’ or u+203A ‘single right-pointing angle quotation mark’ u+232A ISOtech alert("\u232a");

Geometric Shapes

&loz ; ◊ ◊ lozenge u+25CA ISOpub alert("\u25ca");

Miscellaneous Symbols

♠ ♠ ♠ black spade suit u+2660 ISOpub alert("\u2660");

♣ ♣ ♣ black club suit, a.k.a. shamrock u+2663 ISOpub alert("\u2663");

♥ ♥ ♥ black heart suit, a.k.a. valentine u+2665 ISOpub alert("\u2665");