THESAURUS
supplant
act for, bounce, cast out, change places with, crowd out, cut out, dismiss, displace, double for, eject, exchange, expel, fill in for, force out, ghost, ghostwrite, oust, pinch-hit, relieve, remove, replace, represent, spell, spell off, stand in for, step, subrogate, substitute, substitute for, succeed, supersede, swap places with, turn out, understudy for, unseat, usurp
ROGET THESAURUS
supplant
Substitution
VB
substitute, put in the place of, change for, make way for, give place to, supply the place of, take the place of,
supplant, supersede, replace, cut out, serve as a substitute, step into stand in the shoes of, jury rig, make a shift with, put up with, borrow from Peter to pay Paul, take money out of one pocket and put it in another, cannibalize, commute, redeem, compound for.