cutting edge vs blade

cutting edge and blade both are nouns.

Word	Noun	Adjective	Verb	Adverb
cutting edge	Yes	No	No	No
blade	Yes	No	No	No

cutting edge (noun)	blade (noun)
the sharp cutting side of the blade of a knife	the flat part of a tool or weapon that (usually) has a cutting edge
the position of greatest importance or advancement; the leading position in any movement or field	a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard
	flat surface that rotates and pushes against air or water
	the part of the skate that slides on the ice
	a broad flat body part (as of the shoulder or tongue)
	a cut of beef from the shoulder blade
	something long and thin resembling a blade of grass
	a dashing young man
	especially a leaf of grass or the broad portion of a leaf as distinct from the petiole