transitive verb
1. : to wash free of some extraneous substance (as dirt, soap, chemicals)
2.
a. : to drain of color in laundering
this fabric is washed out
b. : to deplete of strength or vitality : exhaust
after his recent illness, he is washed out for the time being
c. : to cancel out : offset
have washed out the effect of government reduction of its debt by the creation of bank deposits — T.O.Waage
d. : to eliminate as useless or unsatisfactory : discard , reject ; specifically : to dismiss (a student or candidate) as failing to qualify
3.
a. : to destroy or render useless by the force or action of water
the storm washed out the bridge
the heavy rains washed out the road
b. : to rain out
the second game of the doubleheader was washed out by a sudden downpour
intransitive verb
1. : to become depleted of color or vitality : fade
technicolor makeup … washes out on TV — Newsweek
2. : to fail to meet requirements or measure up to a standard ; specifically : to fail in a course of training
wash out of flight school
3. : wash 2a