blow drier vs blower

blow drier and blower both are nouns.

Word	Noun	Adjective	Verb	Adverb
blow drier	Yes	No	No	No
blower	Yes	No	No	No

As nouns, blower is a hypernym of blow drier; that is, blower is a word with a broader meaning than blow drier:

blow drier: a hand-held electric blower that can blow warm air onto the hair; used for styling hair
blower: a device that produces a current of air

Other hypernyms of blow drier include drier, dryer.

blow drier (noun)	blower (noun)
a hand-held electric blower that can blow warm air onto the hair; used for styling hair	large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales, dolphins, porpoises, narwhals
	a device that produces a current of air
	a fan run by an electric motor