As nouns the difference between swathes and noun
is that
swathes is while
noun is (grammar|sensu lato) a name of a thing either a noun substantive, which can stand alone and does not require another word to be joined with it to show its signification, or a noun adjective, which can not stand by itself, but requires to be joined with some other word, in order to make sense.
As verbs the difference between swathes and noun
is that
swathes is (
swathe) while
noun is to convert a word to a noun.