loser vs washout

loser and washout both are nouns.

Word	Noun	Adjective	Verb	Adverb
loser	Yes	No	No	No
washout	Yes	No	No	No

As nouns, washout is a hyponym of loser; that is, washout is a word with a more specific, narrower meaning than loser:

Other hyponyms of loser include bankrupt, insolvent, flash in the pan, dud, flop, underdog.

loser (noun)	washout (noun)
a gambler who loses a bet	someone who is unsuccessful
a contestant who loses the contest	the erosive process of washing away soil or gravel by water (as from a roadway)
a person with a record of failing; someone who loses consistently	the channel or break produced by erosion of relatively soft soil by water