sawmill vs saw

sawmill and saw both are nouns.

Word	Noun	Adjective	Verb	Adverb
sawmill	Yes	No	No	No
saw	Yes	No	Yes	No

As nouns, saw is a hypernym of sawmill; that is, saw is a word with a broader meaning than sawmill:

Other hypernyms of sawmill include power saw, sawing machine.

sawmill (noun)	saw (noun)
a mill for dressing logs and lumber	hand tool having a toothed blade for cutting
a large sawing machine	a power tool for cutting wood
	a condensed but memorable saying embodying some important fact of experience that is taken as true by many people

sawmill (verb)	saw (verb)
	cut with a saw