v. 1 cram, force, push, wedge, stuff, press, ram, squeeze, shove, pack, crowd We were jammed in so tightly that we couldn't move 2 block, obstruct, congest, fill up, clog, plug, stop up The toilet is jammed with paper again 3 slam, activate, actuate I jammed on the brakes
n. 4 obstruction, blockage, blocking, block, congestion, tie-up, bottleneck, stoppage She was stuck in a traffic jam for an hour 5 crush, squeeze, crowd, mob, swarm, multitude, throng, mass, horde, pack, press You wouldn't believe the jam of football fans at the cup final! 6 trouble, difficulty, predicament, quandary, dilemma, Colloq bind, fix, hole, pickle, hot water, (tight) spot, scrape: Harry helped me out of a jam once, and I won't forget it