The cardinal number following eighty and preceding eighty-two.

The art or practice of successively outdoing a competitor. / A succession of instances of outdoing a competitor.

While standing up or walking, running, etc. / (idiomatic) Able to stand; hence, healthy, well, especially after some previous illness.

The cardinal number immediately following fifty and preceding fifty-two.

(idiomatic) Close to death.

Partial or biased in favour of one faction or demographic group. / With one competitor dominant over the other. / Out of proportion or lopsided. / Having only one side, like a Möbius strip.

(idiomatic) Alone; by oneself; without the companionship or assistance of others.

A short joke, especially one of a single sentence. / A short remark intended as a sound bite. / (computing) A command or small program consisting of a single line of input.

(especially in phrases like get one up on someone) An advantage over someone. / (video games) Alternative spelling of 1-up (“extra life”)

(idiomatic) To outdo, to perform something slightly better than a competitor's prior effort.