many

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Amounting to or consisting of a large indefinite number.
• adjective Being one of a large indefinite number; numerous.
• noun The majority of the people; the masses.
• noun A large indefinite number.
• pronoun A large number of persons or things.
• idiom (as many) The same number of.

from The Century Dictionary.

• noun See meiny.
• noun A multitude; a great aggregate; specifically, the mass of people; the generality; the common herd.
• noun A considerable number: with the indefinite article, and followed by of expressed or understood.
• noun [The phrase a many (as well as a pretty many) is now rare or colloquial; yet a good many and a great many are still in common use.]
• Being or consisting of a large number of units or individuals; numerous: often used alone, the noun being understood. See many, n.
• Being one of a large number; belonging to an aggregate or category, considered singly as one of a kind: followed by a, an, or another, used distributively. The phrase many a one, so used, was formerly many one without the article.
• Being of a certain number, large or small; plural (especially in the phrase the many as opposed to the one): after a term of qualification (as, so, too, and especially how in interrogations): often with the qualified noun omitted: as, how many people were there? how many will go? as many as the room will hold; not so many as before; too many men are dishonest.
• Much.
• Such a number indefinitely or distributively: as, he took so many of these, and so many of those, and so many of the others.

from the GNU version of the Collaborative International Dictionary of English.

• noun The populace; the common people; the majority of people, or of a community.
• noun A large or considerable number.
• adjective Consisting of a great number; numerous; not few.
• adjective a large number taken distributively; each one of many.
• adjective many a one; many persons.
• adjective the majority; -- opposed to the few. See Many, n.
• adjective too numerous; hence, too powerful.
• noun obsolete A retinue of servants; a household.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• determiner An indefinite large number of.
• pronoun A collective mass of people.
• pronoun An indefinite large number of people or things.
• noun A multitude; a great aggregate; a mass of people; the generality; the common herd.
• noun A considerable number.

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

• adjective a quantifier that can be used with count nouns and is often preceded by `as' or `too' or `so' or `that'; amounting to a large but indefinite number