one-off

adjective

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

noun

1. something occurring, done, or made only once.

one-off

noun

1. Also: one-shot. 

   1. something that is carried out or made only once

   2. ( as modifier )

      a one-off job

Word History and Origins

Origin of one-off¹

First recorded in 1935–40

Word History and Origins

Origin of one-off¹

See _off (sense 15)

Example Sentences

Policies in place to help those struggling with bills include the Warm Home Discount scheme, which offers low-income households, and those vulnerable to cold-related illness, a one-off energy bill rebate of £150.

From BBC

Irish group Boyzone have announced they are to play a one-off concert at London's Emirates Stadium next year.

From BBC

"These despicable, politically motivated attacks against law enforcement are not a one-off."

From BBC

In May, when Stokes backed Pope following the one-off Test against Zimbabwe, the captain said there was an "agenda" against his then deputy.

From BBC

Once the show premiered in 2020, he wrote a shorter “Alice in Borderland: Retry” bonus story focusing on a one-off game, which isn’t enough material for a full season.

From Salon