windmill vs blade

windmill and blade both are nouns.

Word	Noun	Adjective	Verb	Adverb
windmill	Yes	No	No	No
blade	Yes	No	No	No

windmill (noun)	blade (noun)
generator that extracts usable energy from winds	the flat part of a tool or weapon that (usually) has a cutting edge
a mill that is powered by the wind	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