top definitions
examples
british

one-off

Chiefly British

adjective

done, occurring, or made only once; one-shot.

noun

something occurring, done, or made only once.

Origin of one-off

First recorded in 1935–40

Words nearby one-off

one-man show, one-many, one-night stand, one-nighter, one-note, one-off, one-on-one, one-one, one-parent family, one-piece, one-point perspective

Example sentences from the Web for one-off

The former senior intelligence official said the hacking bore the hallmarks of a “campaign,” and not a one-off operation.

Obama Could Hit China to Punish North Korea |Shane Harris, Tim Mak |December 20, 2014 |DAILY BEAST
Most Cacophony events were one-off affairs, just enough to jam the culture a bit before moving on.

Before the Bros, SantaCon Was as an Anti-Corporate Protest |David Freedlander |December 12, 2014 |DAILY BEAST
That could be much more effective than a high-profile, one-off high-level Kerry visit.

Everyone Says John Kerry Should Stay Out of the Middle East |Josh Rogin |July 13, 2014 |DAILY BEAST
Is this a one-off or is Brown working the fake podiatrist long-con?

Lesser Mysteries for Those With Breaking News Fatigue |Kelly Williams Brown |March 23, 2014 |DAILY BEAST

According to an account in The Anglo-Saxon Chronicle, written in the 9th century, that failed Viking raid was hardly a one-off.

Every Viking ‘Fact’ Is Wrong |Nico Hines |March 19, 2014 |DAILY BEAST

British Dictionary definitions for one-off

one-off

noun

British

something that is carried out or made only once
(as modifier)a one-off job

Also: one-shot

Word Origin for one-off

See off (sense 15)