Anschluss addition affiliation agglomeration aggregation agreement alliance amalgamation assimilation association blend blending cabal cartel centralization coadunation coalescence coalition combination combine combo composition confederacy confederation congeries conglomeration conjugation conjunction consolidation conspiracy ecumenism embodiment encompassment enosis federalization federation fusion hookup inclusion incorporation integration junction junta league marriage meld mergence merger merging package package deal solidification syncretism syndication syneresis synthesis tie-up unification union wedding