all

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

• adjective Being or representing the entire or total number, amount, or quantity: synonym: whole.
• adjective Constituting, being, or representing the total extent or the whole.
• adjective Being the utmost possible of.
• adjective Every.
• adjective Any whatsoever.
• adjective Pennsylvania Consumed; used up; gone.
• adjective Informal Being more than one.
• noun The whole of one's fortune, resources, or energy; everything one has.
• pronoun The entire or total number, amount, or quantity; totality.
• pronoun Everyone; everything.
• adverb Wholly; completely.
• adverb So much.
• adverb Used as an intensive.
• adverb Each; apiece.
• idiom (all along) From the beginning; throughout.
• idiom (all but) Nearly; almost.
• idiom (all in) Tired; exhausted.
• idiom (all in) Used in poker as a declaration that one is staking all of one's chips.
• idiom (all in all) Everything being taken into account.
• idiom (all of) Not more than.
• idiom (all one) Of no difference; immaterial.
• idiom (all over) Completely ended or finished.
• idiom (all over) In every part; everywhere.
• idiom (all over) Typical of the person or thing just mentioned.
• idiom (all over) Showing much romantic interest or being in close contact.
• idiom (all over) Persistently or harshly critical or scolding.
• idiom (all out) With all one's strength, ability, or resources.
• idiom (all that) To the degree expected.
• idiom (all there) Mentally unimpaired or competent.
• idiom (all told) With everything considered; in all.
• idiom (and all) And other things of the same type.
• idiom (at all) In any way.
• idiom (at all) To any extent; whatever.
• idiom (be all) To say or utter. Used chiefly in verbal narration.
• idiom (in all) Considering everything; all together.

from The Century Dictionary.

• The whole quantity of, with reference to substance, extent, duration, amount, or degree: with a noun in the singular, chiefly such nouns (proper names, names of substances, abstract nouns—any whole or any part regarded in itself as a whole) as from their meaning or particular use do not in such use admit of a plural: as, all Europe; all Homer; all flesh; all control; all history.
• The whole number of, with reference to individuals or particulars, taken collectively: with a noun in the plural: as, all men; all nations; all metals; all hopes; all sciences; all days.
• Every: chiefly with kind, sort, manner, and formerly with thing.
• Any; any whatever: after a preposition or verb implying negation or exclusion: as, beyond all controversy; out of all question; he was free from all thought of danger.
• Only; alone.
• When joined to nouns accompanied by a definitive (the definite article, a possessive or demonstrative pronoun, etc.), all precedes the latter whether with a singular or plural noun, or else follows the noun if it is plural; as, all my labor; all his goods; all this time; all these things; all the men agreed to this, or, the men all agreed to this. In the phrases all day, all night, all summer, all winter, all the year, all the time, etc., the noun is an adverbial accusative. In the first four the article is usually omitted.
• When joined to a personal or relative pronoun in the plural, all may precede, but now usually follows, the pronoun.
• The alternative construction is all of us, all of them, etc. (see II., 2); or the two constructions may stand together.
• The adjective all, with a singular or plural noun, is often separated from its subject, especially by the verb be (expressed, or in the present participle often omitted), and, being thus apparently a part of the predicate, assumes a transitional position, and may equally well be regarded as an adverb, meaning altogether, wholly: as, the house was all dark; he was all ears; the poor horse was all skin and bones; the papers were all in confusion; it was all a mistake; it is all gone.
• The whole quantity or amount; the whole; the aggregate; the total: in a singular sense.
• The whole number; every individual or particular, taken collectively; especially, all men or all people: in a plural sense.
• All, in either of the preceding uses, is often followed by a limiting phrase with of.
• Everything: as, is that all? that is all.
• Altogether; wholly.