oneoffs

One-off refers to something that occurs, is produced, or is intended to be used only once. The term denotes uniqueness or a single instance rather than repetition or reproduction. It is widely used in British English and, increasingly, in other varieties of English. The spelling is typically one-off, with the hyphen; the form oneoff is rare and nonstandard.

In manufacturing and product design, a one-off item is a unique piece, often a prototype or a custom commission. It may be produced in response to a specific order and not expected to be repeated. In the context of events or media, a one-off is a stand-alone program, special episode, or single-event production that is not part of an ongoing series.

In publishing and printing, a one-off edition refers to a single-print run, such as a commemorative book or limited edition that does not go into mass production. In finance and commerce, a one-off payment occurs at a single time, as opposed to recurring charges or installments.

In art, fashion, and culture, the term describes work made as a unique piece for an exhibition or a particular client. In sports and entertainment, a one-off match or performance is not repeated as part of a season or tour.

The notion of a one-off implies rarity or exclusivity and may be contrasted with serial, repeated, or mass-produced items.