Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Logic An operator that limits the variables of a proposition, as some or all.
  • n. Linguistics A linguistic form that expresses a contrast in quantity, as some, all, or many.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A word, such as all or many, that expresses a quantity
  • n. The operator, represented by either of the symbols ∀ (universal quantifier) or ∃ (existential quantifier), used in predicate calculus to indicate the degree that predicate is true for a specified set.
  • n. A symbol or symbols in a regular expression indicating the number of characters to be matched.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (logic) a word (such as `some' or `all' or `no') that binds the variables in a logical proposition
  • n. (grammar) a word that expresses a quantity (as `fifteen' or `many')

Etymologies

quantify +‎ -er (Wiktionary)

Examples

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