Something unique and remarkable.
Something that is done, created, etc. only once, and often quickly, simply, or improvisationally.
Occurring once, independent of any pattern; one-time.
Singular; unique; special; remarkable.
An extraordinary individual.
A small marble of little worth in children's games.
A long one-take shot, or equivalent animated segment simulating a one-take shot
A conker that has won one match.