change

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

• intransitive verb To cause to be different.
• intransitive verb To give a completely different form or appearance to; transform.
• intransitive verb To give and receive reciprocally; interchange.
• intransitive verb To exchange for or replace with another, usually of the same kind or category.
• intransitive verb To lay aside, abandon, or leave for another; switch.
• intransitive verb To transfer from (one conveyance) to another.
• intransitive verb To give or receive the equivalent of (money) in lower denominations or in foreign currency.
• intransitive verb To put a fresh covering on.
• intransitive verb To become different or undergo alteration.
• intransitive verb To undergo transformation or transition.
• intransitive verb To go from one phase to another, as the moon or the seasons.
• intransitive verb To make an exchange.
• intransitive verb To transfer from one conveyance to another.
• intransitive verb To put on other clothing.
• intransitive verb To become deeper in tone.
• noun The act, process, or result of altering or modifying.
• noun The replacing of one thing for another; substitution.
• noun A transformation or transition from one state, condition, or phase to another.
• noun Something different; variety.
• noun A different or fresh set of clothing.
• noun Money of smaller denomination given or received in exchange for money of higher denomination.
• noun The balance of money returned when an amount given is more than what is due.
• noun Coins.
• noun A pattern or order in which bells are rung.
• noun In jazz, a change of harmony; a modulation.
• noun A market or exchange where business is transacted.
• idiom (change hands) To pass from one owner to another.
• idiom (change (one's) mind) To reverse a previously held opinion or an earlier decision.
• idiom (change (one's) tune) To alter one's approach or attitude.

from The Century Dictionary.

• To change, radically, one's views on any question.
• noun Any variation or alteration in form, state, quality, or essence; a passing from one state or form to another: as, a change of countenance or of aspect; a change of habits or principles.
• noun Specifically
• noun The passing from life to death; death.
• noun In vocalics, the mutation of the male voice at puberty, whereby the soprano or alto of the boy is replaced by the tenor or bass of the man.
• noun In harmony, a modulation or transition from one key or tonality to another.
• noun Variation or variableness in general; the quality or condition of being unstable; instability; transition; alteration: as, all things are subject to change; change is the central fact of existence.
• noun A passing from one thing to another in succession; the supplanting of one thing by another in succession: as, a change of seasons or of climate; a change of scene.
• noun The beginning of a new monthly revolution; the passing from one phase to another: as, a change of the moon (see below).
• noun Alteration in the order of a series; permutation; specifically, in bell-ringing, any arrangement or sequence of the bells of a peal other than the diatonic. See change-ringing.
• noun Variety; novelty.
• noun That which makes a variety or may be substituted for another: as, “thirty change of garments,”
• noun Money of the lower denominations given in exchange for larger pieces.
• noun The balance of money returned after deducting the price of a purchase from the sum tendered in payment.
• noun A place where merchants and others meet to transact business; a building appropriated for mercantile transactions: in this sense an abbreviation of exchange, and often now written 'change.