v. To determine the value of (a variable or expression).
the GNU version of the Collaborative International Dictionary of English
v. To modify or qualify with respect to quantity; to determine, fix or express the quantity of; to rate.
v. To make explicit the quantity of.
The Century Dictionary and Cyclopedia
To determine the quantity of; modify or determine with regard to quantity; mark with the sign of quantity: as, to quantify a syllable or a verse: more especially a term in logic.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. express as a number or measure or quantity
v. use as a quantifier
Word Usage
"A difficult one to quantify is the fundraisers where you pays your money and, say, get a meal."