from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An equal exchange or substitution.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Something understood as another ; an equivocation.
- n. This for that; giving something to receive something else ; something equivalent ; something in return.
- n. An equal exchange.
from The Century Dictionary and Cyclopedia
- n. Something given for something else; a tit for tat; in law, an equivalent; a thing given or offered in exchange for or in consideration of another; the mutual consideration and performance of either party as toward the other in a contract.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. something for something; that which a party receives (or is promised) in return for something he does or gives or promises
Latin quid prō quō : quid, something + prō, for + quō, ablative of quid, something.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin : "what for what" . See quid, pro, and quo (Wiktionary)