As nouns the difference between coworker and teammate
is that coworker is somebody with whom one works; a companion or workmate while teammate is one who is on the same team.
coworker
English
Noun
(
en noun)
Somebody with whom one works; a companion or workmate.
- He heard from a coworker that the company planned to merge those departments.
Synonyms
* colleague
* workmate
* See also