Roget's Thesaurus: Entry 147 (Change of one thing for another)

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#147. [Change of one thing for another.] Substitution. -- N. substitution, commutation; supplanting &c. v.; metaphor, metonymy &c. (figure of speech) 521.

[Thing substituted] substitute, ersatz, makeshift, temporary expedient, replacement, succedaneum; shift, pis aller[Fr], stopgap, jury rigging, jury mast, locum tenens, warming pan, dummy, scapegoat; double; changeling; quid pro quo, alternative.

representative &c. (deputy) 759; palimpsest.

price, purchase money, consideration, equivalent.

V. 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.

Adj. substituted &c.; ersatz; phony; vicarious, subdititious[obs].

Adv. instead; in place of, in lieu of, in the stead of, in the room of; faute de mieux[Fr].