allow, let, permit

deter, avoid, forestall, discourage, avert, thwart, stave off, protect, dissuade, stem, preclude, minimize, insulate, stop, safeguard, mitigate, counteract, curb, prohibit, barring, alleviate, eliminate, preempt, reduce, shield, curtail, remedy, forbid, obviate, quell, lessen, eradicate, restrain, keep, stanch, hinder, distract, resist, quash, circumvent, inhibit, neutralize, impede, restrict, undo, repel, facilitate, aggravate, stymie, negate, squelch, ameliorate, refrain, ensure, exacerbate, absolve, instigate, inoculate, tamp down, justify, detect, defuse, relieve, provoke, remove, allay, rectify, legitimatize, frighten, hasten, punish, fend, precipitate, disallow, warn, evade, assure, sidestep, deprive, legitimize, undermine, prolong, deflect, combating, withstand, risked, spur, encourage, tolerate, dislodge, suppress, stifle, recover, frustrate, conceal, endanger, occur, criminalize, foresee, overcome, compensate, involve, preventing, preventable, iatrogenic, accidental, avoidable, catastrophic, chronic, debilitating, incapacitating, nonfatal, severe, undetected, concomitant, gastrointestinal, inadvertent, inflicted, needless, unnecessary, widespread, dread

avert, avoid, baffle, bilk, blank, block, blockade, cross, debar, deflect, embarrass, exclude, fend off, foil, frustrate, halt, head off, hinder, hold, hold back, impede, keep, keep away, keep back, keep out, kibosh, make unnecessary, obstruct, obviate, queer, rain out, restrain, save, scotch, shut, shut out, spoil, stave off, stop, stymie, stymy, thwart, ward off, wash out

., accessory during the fact, alendronate, allograft, angiogenesis inhibitor, anovulant, anovulatory drug, anti-dumping duty, anticonvulsant, anticonvulsant drug, antiepileptic, antiepileptic drug, antimalarial, antimalarial drug, antipyretic, antispasmodic, antispasmodic agent, antivert, apotropaic, asphyxiate, atomic number 50, attract, avert, avoid, azathioprine, baby's bed, baby bed, baby powder, baffle, balusters, balustrade, banister, bannister, bar, barbed wire, barricade, bilk, birth control device, birth control pill, bitter salts, bja, blindfold, block, blockade, block out, break, breakwater, break off, bulwark, bumper, bumper guard, bureau of justice assistance, calk, calkin, cardiac resuscitation, cardiopulmonary resuscitation, catch, cdc, centerboard, center for disease control and prevention, centreboard, cervical cap, chlorthalidone, chock, click, climber, climbing iron, clinch, collet, conceal, confine, containment, contraceptive, contraceptive device, contraceptive pill, coumadin, countersubversion, counterterrorism, cover-up, cover crop, cpr, cramp, crampon, crampoon, cross, damp-proof course, damp course, debar, debridement, defence, defending, defending team, defense, deflect, dehorn, depokene, detent, deter, deviate, discontinue, discourage, disinherit, disown, dog, dripless, drop keel, ebb, ecm, edward jenner, electronic countermeasures, electronic warfare, embargo, embarrass, endotracheal tube, epsom salts, escutcheon, ew, except, exclude, fatah tanzim, febrifuge, federal job safety law, fend off, ferrule, finger plate, firewall, fixative, fluoridation, fluoridisation, fluoridization, foil, fosamax, frustrate, gag, goalie, goalkeeper, goaltender, groin, groyne, guard, guy, hair, halter, hamper, handrail, hang, headrest, head off, head restraint, help, herbal medicine, hexestrol, hide, hinder, hitching bar, hitching post, hitchrack, homograft, hygroton, ignition lock, immobilise, immobilize, immunosuppression, imuran, inhibition, interdiction fire, intervention, invigilate, invigilation, invigilator, iodise, iodize, jam, jenner, jetty, keep, keep away, keep out, keep up, kiss of life, lag, lagging, laminated glass, last-ditch, lead tetraethyl, leave off, leave out, life belt, ligation, lock, locknut, lock out, loyalist volunteer force, meclizine, meclizine hydrochloride, megavitamin therapy, methylated spirit, mole, moranzanist patriotic front, mouth-to-mouth resuscitation, muzzle, negative identification, netkeeper, nonskid, nonslip, obstruct, obviate, occupational safety and health act, omit, oral contraceptive, oral contraceptive pill, osmotic pressure, outrigged, outrigger canoe, overcast, overcasting, papillary muscle, pasteurized milk, pawl, pill, pin, portcullis, positive identification, pre-emptive strike, preemptive, preemptive bid, preserve, press, preventative, preventive, proctor, prophylactic device, pull the plug, quarantine, queer, rack, rain out, red hand defenders, reflux condenser, reshuffle, restraint of trade, retaining wall, rhd, right atrioventricular valve, roughshod, safety, safety belt, safety device, safety glass, safety harness, safety nut, safety razor, scotch, screen, screen saver, scutcheon, sealed offp, seawall, security consultant, shatterproof glass, sheath pile, sheet pile, sheet piling, shielded, shredder, shut, shut out, sliding keel, smother, sn, sodium fluoride, spasmolytic, spoil, spoiler, sprag, stave off, stop, strangle, stymie, stymy, suffocate, surveillance of disease, tactfully, take out, tanzim, teaser, tetraethyl lead, thalidone, thwart, tie, tie beam, tin, tin plate, tormenter, tormentor, trap, tricuspid valve, turnpike, valiant, valproic acid, ward off, warfarin, washer, wash out, wedge

forbid, foreclose, forestall, keep, preclude