- one-off one-off ➔ one-time
* * *Ⅰ.one-off UK US /ˌwʌnˈɒf/ adjective [before noun] UK► (US one-shot) produced or happening only once: »
The London store is stocking 12 exclusive, one-off designs.»
a one-off opportunity/chance»
a one-off cost/paymentⅡ.one-off UK US noun [C]► something that happens or that is made or done only once: »
The bank's checks indicated the error was a one-off.
Financial and business terms. 2012.