- chiefly US Canadian the male of the domestic fowl; a cock
WordReference Random House Learner's Dictionary of American English © 2026
roost•er /ˈrustɚ/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- Birdsthe male of domestic fowl and certain game birds;
cock.
roost•er
(ro̅o̅′stər),USA pronunciation n.
- Birdsthe male of domestic fowl and certain game birds;
cock. - Governmenta representation of this bird, used as an emblem of the Democratic party from 1842 to 1874.
- Informal Termsa cocky person.
- roost + -er1 1765–75
Collins Concise English Dictionary © HarperCollins Publishers::
rooster /ˈruːstə/ n
'rooster' also found in these entries (note: many are not synonyms or translations):
roster
- alectryomancy
- bristle
- chanticleer
- cock
- cock-a-doodle-doo
- crest
- crow
- ergot
- fowl
- gamecock
- hackle
- hennin
- roosterfish
- rooster tail
- weathercock
- sickle feather
- snaphaunce
- spur