On the highest point or surface. / (idiomatic) In a dominant position.

(idiomatic) Finally, permanently, conclusively.

Individually in succession; one at a time.

To a high position; or up in, or to, the sky; above. / (specifically, chiefly Christianity, literary) Up in, or to, Heaven. / (humorous) In authority, influence, or power.

Allowing movement in only one direction; unidirectional. / Allowing travel in only one direction.

(agriculture) To use a disc harrow to turn the soil and kill weeds, in preparation for planting seeds.

(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) in a period of decrease or decline

(reciprocal pronoun) Used of a reciprocal relationship among a group of two or more people or things; compare each other.