English Dictionary
Definition co- in British English
co- prefix
prefix
/kəʊ/
1
together: used with some nouns, verbs, and adjectives
Example
coeducation (=the education of boys and girls together)
Example
cohabiting couples (=people living together without being married)
2
sharing a job or responsibility: used with some nouns, verbs, and adjectives
Example
her co-star (=another main actor taking part with her in the film)
Example
my co-driver (=someone who drives so that I can rest)

Related Words
Words related to co-:
and Co. (phrase)
C.O. (noun)
co- (prefix)
co-accused (noun)
co-brother (noun)
co-creation (noun)
co-defendant (noun)
co-housing (noun)
co-location (noun)
co-occur (verb)
co-op (noun)
co-opt (verb)
co-own (verb)
co-pilot (noun)
co-respondent (noun)
co-sister (noun)
co-star (noun)
co-star (verb)
co-text (noun)
co-worker (noun)
Co. (abbreviation)
Co. (abbreviation)