swosh vs swish

swosh is not a noun while swish is a noun.

Word	Noun	Adjective	Verb	Adverb
swosh	No	No	Yes	No
swish	Yes	Yes	Yes	No

As verbs, swosh and swish are synonyms defined as:

swosh and swish: move with or cause to move with a whistling or hissing sound

Other synonyms of swosh include lap, swoosh.

swosh (noun)	swish (noun)
	a brushing or rustling sound

swosh (adjective)	swish (adjective)
	elegant and fashionable

swosh (verb)	swish (verb)
move with or cause to move with a whistling or hissing sound	move with or cause to move with a whistling or hissing sound