A
unique and
distinct example of an established
form. aka "
one-shot". almost always physical objects, often custom-made, frequently seen as highly collectable or desirable due to their individuality. sometimes used to describe an event, such as a music concert.
Primarily used as an adjective, may also be used as a noun.
examples:
concept cars. custom
jewelry or
clothes. especially when made by producers of high-quality mass-produced items such as
furniture or
electronics.
sometimes used to refer to a
recordable cd, or "
CD-R".
used in the phrase "one-off
billet" to describe custom machine parts.