Anschluss addition affiliation agglomeration aggregation agreement alliance amalgamation assimilation association bipartisanship blend blending breadth broad gauge broad-mindedness broadness cabal cartel centralization coaction coadjuvancy coadministration coagency coalescence coalition cochairmanship codirectorship collaboration collaborativeness collectivism collusion combination combine combo commensalism common effort common enterprise communalism communism communitarianism community complicity composition concert concord concordance concurrence confederacy confederation congeries conglomeration conjugation conjunction consolidation conspiracy cooperation cooperativeness cosmopolitanism duet duumvirate ecumenicalism ecumenicism ecumenicity embodiment encompassment enosis esprit esprit de corps federalization federation fellow feeling fellowship fusion harmony hookup inclusion incorporation integration joining of forces joint effort joint operation junction junta large-mindedness latitude league marriage mass action meld melding merger morale mutual assistance mutualism mutuality noninsularity octet package package deal pooling pooling of resources pulling together quartet quintet reciprocity septet sextet solidarity solidification spacious mind symbiosis syncretism syndication syneresis synergism synergy synthesis team spirit teamwork tie-up trio triumvirate troika unbigotedness unhideboundness unification union united action unparochialism unprovincialism wedding wide-mindedness