to grow together or into one body

The two lakes coalesced into one.

to unite so as to form one mass, community, etc.

The various groups coalesced into a crowd.

to blend or come together

Their ideas coalesced into one theory.

to cause to unite in one body or mass.

verb

divide , separate

verb

adhere , amalgamate , associate , bracket , cleave , cling , cohere , combine , commingle , commix , conjoin , connect , consolidate , fuse , hook up with , incorporate , integrate , join , join up with , link , merge , mingle , mix , relate , stick , tie in with , unite , wed , compound , concrete , conjugate , couple , marry , meld , unify , yoke , blend , fraternize