blade vs impeller

impeller vs blade

blade and impeller both are nouns.

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

As nouns, impeller is a hyponym of blade; that is, impeller is a word with a more specific, narrower meaning than blade:

blade: flat surface that rotates and pushes against air or water
impeller: the blade of a rotor (as in the compressor of a jet engine)

Other hyponyms of blade include fan blade, paddle, rudder blade.

blade (noun)	impeller (noun)
the flat part of a tool or weapon that (usually) has a cutting edge	the blade of a rotor (as in the compressor of a jet engine)
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

Difference between blade and impeller

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