to overthrow (something established or existing).

to cause the downfall, ruin, or destruction of.

to undermine the principles of; corrupt.

verb

be loyal , comply , obey , uphold

verb

capsize , contaminate , corrupt , debase , defeat , demolish , deprave , depress , extinguish , invalidate , invert , level , overthrow , overturn , pervert , poison , pull down , raze , reverse , ruin , sabotage , supersede , supplant , suppress , topple , tumble , undermine , upset , vitiate , wreck , bring down , unhorse