one-off

Chiefly British

adjective

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

noun

something occurring, done, or made only once.

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Origin of one-off

First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for one-off

British Dictionary definitions for one-off

one-off

noun

British
  1. something that is carried out or made only once
  2. (as modifier)a one-off job
Also: one-shot

Word Origin for one-off

See off (sense 15)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012