1. (v. t.) To make worse; to deteriorate; to impair.

2. (v. t.) To get the better of; to worst.

3. (v. i.) To grow or become worse.

accommodate adapt adjust agent provocateur aggravate alter ameliorate amplify annoy augment be changed be converted into be renewed better blast blight bottom out break break up build up change checker chop chop and change come about come around come round convert corrupt damage debase decline deepen deform degenerate degrade denature descend deteriorate deviate dilapidate disimprove disintegrate diverge diversify embitter endamage enhance enlarge exacerbate exasperate fall back fit flop foul get worse grow worse harm haul around heat up heighten hot up humble hurt impair improve increase injure intensify irritate jibe let down lower magnify make acute make worse meliorate mitigate modify modulate mutate overthrow provoke put back qualify re-create realign rebuild reconstruct redesign refit reform regress relapse remake renew reshape restructure retrograde retrogress revamp revive ring the changes rot sharpen shift shift the scene shuffle the cards sicken sink slacken slip back sour subvert swerve tack taint take a turn turn turn aside turn into turn the corner turn the scale turn the tables turn the tide turn upside down undergo a change vary veer warp weaken work a change