9
team up(verb, expression, help, meet, join)
8
amalgamate(verb, meet, join, group, unite)
8
assist(verb, support, help, advance, develop)
8
conspire(verb, help, meet, plan, play)
7
accede(verb, agree, approve, acquiesce, consent)
7
coincide(verb, help, meet, play, agree)
7
consolidate(verb, meet, join, group, unite)
7
fuse(verb, meet, join, group, unite)
7
lend a hand(verb, expression, idiom, support, help)
7
unite with(verb, join, group, together)
6
acquiesce(verb, accept, agree, allow, approve)
6
club(verb, join, group, together)
6
co-operate(verb, join, group, together)
6
incorporate(verb, meet, join, group, unite)
5
be in cahoots(verb, expression, idiom, help, meet)
5
act in concert(verb, expression, idiom)
5
affiliate(verb, support, meet, join, agree)
5
align(verb, support, join, group, follow)
5
assent(verb, meet, accept, agree, allow)
5
bandy(verb, join, group, together)
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APASmart Define. (2015). cooperate thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/cooperate/thesaurus/synonyms
ChicagoSmart Define. 2015. "cooperate thesaurus" https://smartdefine.org/cooperate/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, cooperate thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/cooperate/thesaurus/synonyms>.
MLASmart Define. "cooperate thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/cooperate/thesaurus/synonyms>