jigsaw vs saw

jigsaw and saw both are nouns.

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

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

jigsaw: fine-toothed power saw with a narrow blade; used to cut curved outlines
saw: a power tool for cutting wood

Other hypernyms of jigsaw include power saw, sawing machine.

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

jigsaw: a portable power saw with a reciprocating blade; can be used with a variety of blades depending on the application and kind of cut; generally have a plate that rides on the surface that is being cut
saw: a power tool for cutting wood

Other hypernyms of jigsaw include power saw, sawing machine.

jigsaw (noun)	saw (noun)
fine-toothed power saw with a narrow blade; used to cut curved outlines	hand tool having a toothed blade for cutting
a portable power saw with a reciprocating blade; can be used with a variety of blades depending on the application and kind of cut; generally have a plate that rides on the surface that is being cut	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

jigsaw (verb)	saw (verb)
	cut with a saw