swash vs boast

swash and boast both are nouns.

Word	Noun	Adjective	Verb	Adverb
swash	Yes	No	Yes	No
boast	Yes	No	Yes	No

As verbs, swash and boast are synonyms defined as:

Other synonyms of swash include blow, bluster, brag, gas, gasconade, shoot a line, tout, vaunt.

swash (noun)	boast (noun)
the movement or sound of water	speaking of yourself in superlatives

swash (verb)	boast (verb)
act in an arrogant, overly self-assured, or conceited manner	show off
show off	wear or display in an ostentatious or proud manner
dash a liquid upon or against
make violent, noisy movements