Real Dictionary

bleach
variable noun: Bleach is a chemical that is used to make cloth white, or to clean things thoroughly and kill germs.
verb: If the sun bleaches something, or something bleaches, its colour gets paler until it is almost white.
verb: If you bleach something, you use a chemical to make it white or pale in colour.

bleach in American English
a bleaching or whitening
to become white, colorless, or pale
to remove color from by means of chemicals or by exposure to the sun's rays
intransitive verb: to become whiter or lighter in color
noun: a bleaching agent
transitive verb: to make whiter or lighter in color, as by exposure to sunlight or a chemical agent; remove the color from

bleach in British English
noun: a bleaching agent
verb: to make or become white or colourless, as by exposure to sunlight, by the action of chemical agents, etc