balk, bar, block, chain, clog, crimp, deterrent, drag, embarrassment, encumbrance, fetter, handicap, hindrance, holdback, hurdle, impediment, inhibition, interference, let, manacle, obstacle, obstruction, shackles, stop, stumbling block, trammel

catch, hitch, rub, snag

barrier, blockade, blockage, brick wall, stone wall

arrest, bit, brake, check, constraint, curb, hobble, rein, restraint

embargo, stoppage

charley horse, crick, kink, spasm

contraction, jerk, pang, stitch, twinge, twitch

balk, bar, block, chain, clog, crimp, deterrent, drag, embarrassment, encumbrance, fetter, handicap, hindrance, holdback, hurdle, impediment, inhibition, interference, let, manacle, obstacle, obstruction, shackles, stop, stumbling block, trammel

catch, hitch, rub, snag

barrier, blockade, blockage, brick wall, stone wall

arrest, bit, brake, check, constraint, curb, hobble, rein, restraint

embargo, stoppage