Alter word meaning and definition

[verb] remove the ovaries of; "Is your cat spayed?"
[verb] make or become different in some particular way, without permanently losing one's or its former characteristics or essence; "her mood changes in accordance with the weather"; "The supermarket's selection of vegetables varies according to the season"
[verb] cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"
[verb] insert words into texts, often falsifying it thereby
[verb] make an alteration to; "This dress needs to be altered"

\Al"ter\, v. t. [imp. & p. p. {Altered}; p. pr. & vb. n. {Altering}.] [F. alt['e]rer, LL. alterare, fr. L. alter other, alius other. Cf. {Else}, {Other}.] 1. To make otherwise; to change in some respect, either partially or wholly; to vary; to modify. ``To alter the king's course.'' ``To alter the condition of a man.'' ``No power in Venice can alter a decree.'' --Shak. It gilds all objects, but it alters none. --Pope. My covenant will I not break, nor alter the thing that is gone out of my lips. --Ps. lxxxix. 34. 2. To agitate; to affect mentally. [Obs.] --Milton. 3. To geld. [Colloq.] Syn: {Change}, {Alter}. Usage: Change is generic and the stronger term. It may express a loss of identity, or the substitution of one thing in place of another; alter commonly expresses a partial change, or a change in form or details without destroying identity.
\Al"ter\, v. i. To become, in some respects, different; to vary; to change; as, the weather alters almost daily; rocks or minerals alter by exposure. ``The law of the Medes and Persians, which altereth not.'' --Dan. vi. 8.

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