a member of a motorcycle gang
WordReference Random House Learner's Dictionary of American English © 2025
bik•er /ˈbaɪkɚ/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- a person who rides a bike.
- Informal TermsInformal. a member of a motorcycle gang.
bik•er
(bī′kər),USA pronunciation n.
- a person who rides a bicycle, motorcycle, or motorbike, esp. in competition or as a hobby.
- Informal Termsa member of a motorcycle gang.
- bike1 + -er1 1880–85
Collins Concise English Dictionary © HarperCollins Publishers::
'biker' also found in these entries (note: many are not synonyms or translations):