Synonyms and related words :
affably, agreeably, amiably, amicably, ardently, arm in arm, as one, as one man, back to back, cheek by jowl, coactively, coefficiently, collectively, combinedly, communally, companionably, concertedly, concordantly, concurrently, congenially, conjointly, cooperatingly, cooperatively, cordially, familiarly, favorably, friendliwise, friendly, genially, gregariously, hand in glove, harmoniously, heartily, herewith, in chorus, in concert with, in harmony with, in unison, intimately, jointly, pleasantly, shoulder to shoulder, sociably, socially, therewith, therewithal, together, unanimously, warmly, with one accord, with one voice, with open arms