fretsaw vs scroll saw

fretsaw and scroll saw both are nouns.

Word	Noun	Adjective	Verb	Adverb
fretsaw	Yes	No	No	No
scroll saw	Yes	No	No	No

As nouns, fretsaw and scroll saw are synonyms defined as:

fretsaw and scroll saw: fine-toothed power saw with a narrow blade; used to cut curved outlines

Other synonyms of fretsaw include jigsaw.

fretsaw (noun)	scroll saw (noun)
fine-toothed power saw with a narrow blade; used to cut curved outlines	fine-toothed power saw with a narrow blade; used to cut curved outlines