Synonyms and related words :
aboveboard, adjacent, adjoining, at opposite extremes, back to back, before one, bordering, connecting, conterminous, contiguous, contrariwise, contrary, coterminous, counter, end to end, endways, endwise, eyeball to eyeball, immediate, in broad daylight, in open court, in plain sight, in plain view, in public, in public view, in the marketplace, in the open, joined, just opposite, juxtaposed, juxtapositional, juxtapositive, neighbor, neighboring, next, nose to nose, on the table, openly, opposite, overtly, poles apart, publicly, vis-a-vis