Synonyms and related words :
affiliation, alignment, alliance, amalgamation, association, boon companionship, brotherhood, brotherliness, cahoots, chumship, coadunation, coalescence, coalition, colleagueship, collegialism, collegiality, combination, community of interest, companionship, comradeship, confederacy, confederation, confraternity, consolidation, consortship, copartnership, copartnery, esprit de corps, federation, fellowship, fraternalism, fraternity, fraternization, fusion, hookup, inclusion, incorporation, integration, league, merger, partnership, sisterhood, sisterliness, sodality, sorority, tie-in, tie-up, unification, union