Whiten

Verb

 * 1)  To make white or whiter; to bleach or blanch.
 * 2)  To become white or whiter; to bleach or blanch.

Thesaurus
achromatize, besnow, blanch, bleach, bleach out, blench, blush, bowdlerize, chalk, change color, clean, clean out, clean up, cleanse, clear out, color, crimson, darken, decolor, decolorize, delouse, depurate, deterge, dim, discolor, drain, drain of color, dry-clean, dull, dust, dust off, etiolate, expurgate, extenuate, fade, fade out, flush, freshen, frost, fume, gloss over, glow, grizzle, grow pale, lighten, look black, lose color, lustrate, mantle, pale, peroxide, purge, purify, redden, reform, scavenge, silver, spruce, steam-clean, sugarcoat, sweep out, sweeten, tarnish, tidy, tone down, turn color, turn pale, turn red, turn white, varnish, veneer, wan, wash out, white, whitewash, wipe, wipe off, wipe out, wipe up