strengthens, erodes, diminishes, undermines, dampens, deteriorates, curtails, depletes, slows, shrinks, depresses, destroys, deepens, impairs, saps, improves, boosts, lowers, softens, hurts, devastates, cripples, impedes, lessens, disrupts, falters, endangers, wanes, accelerates, decimates, sags, threatens, stabilizes, hinders, jeopardizes, eases, bolsters, enhances, intensifies, fortifies, complicates, dilutes, plummets, reduces, tightens, unsettles, sours, corrodes, imperils, sustains, devalues, alters, stagnates, aggravates, dims, stiffens, prolongs, deflates, constricts, loses, inhibits, widens, expands, damps, crumbles, pushes, hardens, debases, entrenches, impoverishes, suppresses, flattens, deprives, loosens, darkens, broadens, affects, dwindles, lengthens, fizzles, persists, tarnishes, worsen, harms, disturbs, stimulates, enlarges, shortens, solidifies, inflames, heightens, unnerves, negates, overwhelms, demoralizes, enriches, stifles, elevates, restrains, inflates, taints, shrivels, docs, makes, cease, coincide, derives, interferes, operate, originates, put, serve, suffers, *, arises, be, compare, comprise, cor, derive

reinforcement, reinforcer, reinforcing stimulus, truth drug, truth serum, weakener