She is always up on current events.

informed; familiar; aware (usually followed by on or in ): She is always up on current events.

informed; familiar; aware (usually followed by on or in ): She is always up on current events.

the up elevator; the up train traveling north; the up platform of a railroad station.

moving in or related to a direction that is up or is regarded as up: the up elevator; the up train traveling north; the up platform of a railroad station.

moving in or related to a direction that is up or is regarded as up: the up elevator; the up train traveling north; the up platform of a railroad station.

concluded; ended; finished; terminated: The game is up. Your hour is up.

going on or happening; taking place; occurring: What's up over there?

having a high position or station: He is up in society.

in an erect, vertical, or raised position: The gate at the railroad crossing is up. The tent is up.

above the earth or ground: The corn is up and ready to be harvested.

in the air; aloft: The meteorological balloons are up. The airplanes are up for their reconnaissance flights.

(of heavenly bodies) risen above the horizon: The sun is up.

awake or out of bed: to be up with insomnia.

mounted on horseback: He knows which jockeys are up in every race.

(of water in natural bodies) high with relation to the banks or shore: The tide is up.

built; constructed: The new museum is up and open to the public.

facing upward: He is resting and his face is up.

(of roads, highways, etc.) having the surface broken or removed (usually used in combination): a torn-up road.

in revolt, mutiny, or rebellious agitation: Many territories were up and preparing to send troops against the government.

in a state of agitation: Beware of him when his temper is up.

Informal . cheerful or optimistic; high-spirited; happy; exuberant; upbeat.

Informal . productive, favorable, or profitable: a string of up months for the company.

afoot or amiss: Her nervous manner told me that something was up.

in a state of enthusiastic or confident readiness (usually followed by for ): The team was definitely up for the game.

bound; on the way: She was on a ship up for Australia.

resolved in an unfavorable or undesired way: They knew that their game was up.

higher than formerly in cost, amount, degree, etc.: The price of meat was up.

(of age) advanced (usually followed by in ): He is rather spry for a man so up in years.

active: The captain wished to set sail as soon as the wind was up.

in a legal proceeding as defendant: He is up for murder.

in operation or ready for use: The theater's lights are up.

(of points or other standards used to determine the winner in a competition) ahead; in advance: He won the game with two points up over his opponent.

considered or under consideration: a candidate up for reelection; a bill that is up before Congress.

wagered; bet: He won all the money up in the game.

living or located inland or on elevated ground: They live in a village two miles up from the coast.

(used with a preceding numeral to indicate that a score is tied in a competition): It was 10 up at the end of the first half.