In the middle of a group; among a group.

Suddenly; abruptly, just where one stands.

Alternative form of on the one hand

The number 1,000,000.

Used other than figuratively or idiomatically: see on, one, knee. / (idiomatic) At the mercy of someone.

(literally) Being seen or targeted, often through the sights of a weapon. / (figuratively) The target or object of one's efforts or ambitions. / (figuratively) Still achievable.

plural of one and only

(idiomatic) Unique, one of a kind.

(idiomatic) Only love, sole sweetheart.

plural of hole in one