arrest, arrestation, arrestment, bearing rein, bit, blockage, blocking, brake, chain, check, checkrein, chock, clog, clogging, closing up, closure, constriction, countercheck, cramp, curb, curb bit, damper, delay, detainment, detention, doorstop, drag, drag sail, drift anchor, drift sail, drogue, fetter, fixation, foot-dragging, hampering, hindering, hindrance, holdup, impediment, inhibition, interference, interruption, let, martingale, negativism, nuisance value, obstruction, obstructionism, occlusion, opposition, pelham, remora, repression, resistance, restraint, restriction, retardation, retardment, scotch, sea anchor, setback, shackle, snaffle, spoke, squeeze, stay, stop, stranglehold, stricture, suppression, trammel