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

Also one-shot

“single example of a manufactured product,” 1934, from one + off. Later given figurative extension.


Something unique; something not repeated:encouraged band member Jim Warchol to think of 5th and National as more than a one-off (1934+)


Read Also:

  • One of the boys

    noun phrase An ordinary, amiable man; a man without side or lofty dignity; ordinary Joe: His Eminence was trying hard to be one of the boys (1893+)

  • One of these days

    Also, one day; some day. On some day in the future, as in One of these days I’m going to clean out my desk, or One day you’ll see what it’s like to have your child insult you, or They hoped to buy a brand-new car some day. [ Mid-1500s ] Also see: one of […]

  • One of those things

    Related Terms just one of those things

  • One of those days

    Also, just one of those days. A day when everything goes wrong, as in The car wouldn’t start, I lost my glasses—it was one of those days. This expression was first recorded in 1936.

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