(management) Describing a service operation at which all of a customer's needs may be satisfied without visiting another.

plural of one-off

plural of one up

plural of one-liner

A final drink before one leaves.

(idiomatic) Having only one opinion, outlook, tone, etc., especially as expressed repetitively; without variety or range.

(idiomatic, colloquial) Used to express the speaker's belief that a preceding statement expressed a desired rather than an actual state of affairs.

In the time when one was of a certain age.

(colloquial) Something important; (with 'the') the most important one, (especially sports) the big game, the big play. / (US, colloquial) One hundred or one thousand dollars. / (US, colloquial) A dollar.

A friend or date whom one brings along to an event; a guest of a guest.