amalgamation 12 Associations

merger uniting consolidation (generic term) integration (generic term)

fusion 6 Associations

merger unification union (generic term)

merge 5 Associations

unify unite integrate (generic term) disunify (antonym)

merge 5 Associations

blend flux mix conflate commingle immix fuse

merge 5 Associations

unite unify change (generic term) alter (generic term) modify (generic term)

merger 6 Associations

amalgamation uniting consolidation (generic term) integration (generic term)

merger 6 Associations

fusion unification union (generic term)