agent provocateur, aggravate, alter, ameliorate, amplify, annoy, augment, be changed, be converted into, be renewed, bottom out, break, build up, change, checker, chop, chop and change, come about, come around, come down, come round, crumble, damage, debilitate, decay, decline, decompose, deepen, degenerate, degrade, depreciate, descend, deviate, dilapidate, disimprove, disintegrate, diverge, diversify, embitter, endamage, enhance, enlarge, erode, exacerbate, exasperate, fade, fall back, flag, flop, get worse, go downhill, go to pot, grow worse, harm, haul around, have a comedown, heat up, heighten, hit rock bottom, hot up, hurt, impair, improve, increase, injure, intensify, irritate, jibe, languish, lessen, let down, magnify, make acute, make worse, mar, meliorate, mitigate, modulate, mutate, provoke, put back, reach the depths, regress, relapse, retrograde, retrogress, revive, rot, sharpen, shift, sicken, sink, slacken, slide, slip, slip back, sour, spoil, swerve, tack, take a turn, touch bottom, turn, turn aside, turn into, turn the corner, undergo a change, undermine, vary, veer, warp, weaken, worsen