Real Dictionary

blanch
verb: If you blanch, you suddenly become very pale.
verb: If you say that someone blanches at something, you mean that they find it unpleasant and do not want to be involved with it.

blanch in American English
to make white; take color out of
to whiten; turn pale

blanch in American English 1
intransitive verb: to become white; turn pale
transitive verb: to whiten by removing color; bleach

blanch in American English 2
transitive verb: to force back or to one side; head off, as a deer or other quarry

blanch in British English
to remove colour from, or (of colour) to be removed; whiten; fade