Twerk, emoji, facepalm. Ew.

Last year it would have been against the rules for casual Scrabble players to use any of those words. Not anymore. Merriam-Webster announced on Monday it had added more than 300 words to the latest edition of its official Scrabble dictionary.

“It means that in some ways the whole game is thrown open and made anew,” Emily Brewster, an associate editor and lexicographer at Merriam-Webster, said. “I think it’s especially exciting to people who play regularly.”

Scrabble, the word game played with lettered tiles, turns 70 this year and remains one of the most enduring and popular board games; it can also be played online. Last updated four years ago, the Scrabble dictionary contains more than 100,000 two- to eight-letter words. The new edition of the Scrabble dictionary is available online, and in hardcover and paperback. Versions for iOS, Android and Kindle will be available this month.

New words are added to the Merriam-Webster Scrabble dictionary if they are found in a standard dictionary, in particular, Merriam-Webster’s collegiate dictionary. The new additions cannot include abbreviations, capitalized words or words containing hyphens or apostrophes.