gouge vs edge tool

gouge and edge tool both are nouns.

Word	Noun	Adjective	Verb	Adverb
gouge	Yes	No	Yes	No
edge tool	Yes	No	No	No

As nouns, edge tool is a hypernym of gouge; that is, edge tool is a word with a broader meaning than gouge:

gouge: and edge tool with a blade like a trough for cutting channels or grooves
edge tool: any cutting tool with a sharp cutting edge (as a chisel or knife or plane or gouge)

gouge (noun)	edge tool (noun)
the act of gouging	any cutting tool with a sharp cutting edge (as a chisel or knife or plane or gouge)
and edge tool with a blade like a trough for cutting channels or grooves
an impression in a surface (as made by a blow)

gouge (verb)	edge tool (verb)
force with the thumb
make a groove in
obtain by coercion or intimidation