wash out vs washout

wash out is not a noun while washout is a noun.

Word	Noun	Adjective	Verb	Adverb
wash out	No	No	Yes	No
washout	Yes	No	No	No

wash out (noun)	washout (noun)
	someone who is unsuccessful
	the erosive process of washing away soil or gravel by water (as from a roadway)
	the channel or break produced by erosion of relatively soft soil by water

wash out (verb)	washout (verb)
deplete of strength or vitality
lose color in the process of being washed
drain off the color in the course of laundering
remove by the application of water or other liquid and soap or some other cleaning agent
wear or destroy by the force of water
wash free from unwanted substances, such as dirt
prevent or interrupt due to rain