back to back

Synonyms and related words:

as one, as one man, at opposite extremes, behind, behind the scenes, coactively, coefficiently, collectively, combinedly, communally, concertedly, concordantly, concurrently, conjointly, contrariwise, contrary, cooperatingly, cooperatively, counter, eyeball to eyeball, face to face, hand in glove, hand in hand, harmoniously, in back of, in chorus, in concert with, in the background, in the rear, in unison, jointly, just opposite, nose to nose, opposite, poles apart, shoulder to shoulder, tandem, together, unanimously, vis-a-vis, with one voice