1.  alter(v = verb.change) change, modify - 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"
Derived forms adjective alterable₁, noun alteration₂, noun alteration₁
Sample sentences: Somebody ----s something; Somebody ----s somebody; Something ----s somebody; Something ----s something

2.  alter(v = verb.change) change, vary - 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"
Sample sentences: Something ----s; Somebody ----s

3.  alter(v = verb.creation) - make an alteration to; "This dress needs to be altered"
is one way to alter, change, modify
Derived forms adjective alterable₁, noun alteration₂
Sample sentences: They alter the cape

4.  alter(v = verb.change) falsify, interpolate - insert words into texts, often falsifying it thereby;
is one way to edit, redact
Sample sentences: Somebody ----s something

5.  alter(v = verb.body) castrate, neuter, spay - remove the ovaries of; "Is your cat spayed?"
is one way to desex, desexualise, desexualize, fix, sterilise, sterilize, unsex
Sample sentences: Somebody ----s somebody

1.  To make otherwise; to change in some respect, either partially or wholly; to vary; to modify. Shak. [1913 Webster]
"It gilds all objects, but it alters none." [1913 Webster]
"My covenant will I not break, nor alter the thing that is gone out of my lips." [1913 Webster]

2.  To agitate; to affect mentally. Milton. [1913 Webster]

3.  To geld. [1913 Webster]

   To become, in some respects, different; to vary; to change; as, the weather alters almost daily; rocks or minerals alter by exposure. Dan. vi. 8. [1913 Webster]

alter, v.
1 tr. & intr. make or become different; change.
2 tr. US & Austral. castrate or spay.

Derivative:
alterable adj. alteration n.

Etymology:
ME f. OF alterer f. LL alterare f. L alter other

VB  change, alter, vary, wax and wane, modulate, diversify, qualify, tamper with, turn, shift, veer, tack, chop, shuffle, swerve, warp, deviate, turn aside, evert, intervert, pass to, take a turn, turn the corner, resume, work a change, modify, vamp, superinduce, transform, transfigure, transmute, transmogrify, transume, metamorphose, ring the changes, innovate, introduce new blood, shuffle the cards, give a turn to, give a color to, influence, turn the scale, shift the scene, turn over a new leaf, recast, reverse, disturb, convert into.

VB  be impotent, not have a leg to stand on, vouloir rompre l'anguille au genou, vouloir prendre la lune avec les dents, collapse, faint, swoon, fall into a swoon, drop, go by the board, go by the wayside, go up in smoke, end in smoke, render powerless, deprive of power, disable, disenable, disarm, incapacitate, disqualify, unfit, invalidate, deaden, cramp, tie the hands, double up, prostrate, paralyze, muzzle, cripple, becripple, maim, lame, hamstring, draw the teeth of, throttle, strangle, garrotte, garrote, ratten, silence, sprain, clip the wings of, put hors de combat, spike the guns, take the wind out of one's sails, scotch the snake, put a spoke in one's wheel, break the neck, break the back, unhinge, unfit, put out of gear, unman, unnerve, enervate, emasculate, castrate, geld, alter, neuter, sterilize, fix, shatter, exhaust, weaken.

alter ego