(uncountable) The direction opposed to the pull of gravity. / (countable) A positive thing, or a time or situation when things are going well. / (particle physics) An up quark.

(transitive, poetic or in certain phrases) To physically raise or lift. / (transitive, colloquial) To increase the level or amount of. / (transitive, colloquial) To promote.

Next to; near; towards; as far as. / Capable of. / Ready for. / Willing to participate in. / As much as; no more than. / Until. / For the option or decision of. / Doing; involved in.

maximum of.

(idiomatic, colloquial) Well-informed concerning.

(idiomatic) To do or be involved in doing; to do (often something mischievous or inappropriate). / (idiomatic) To depend on, to be the choice of.

Used to indicate increase. / Used to indicate higher position or direction, literally or figuratively.

In a position of prominence or importance. / Used other than figuratively or idiomatically: see up, there.

(colloquial) Abruptly; unexpectedly.

(idiomatic) To desist from saying something unless one is able to prove it; to act in a manner that makes further talk unnecessary.