v. 1 plunge, nosedive, sound, descend, dip, submerge, go under, sink; jump, leap, duck; swoop, plummet The submarine dived at once
n. 2 plunge, nosedive The plane went into a dive 3 bar, saloon, nightclub, bistro, club, Colloq nightspot, Slang joint, US dump, honky-tonk, juke-joint He met the woman in a dive in Limehouse