blow drier vs hair dryer

blow drier and hair dryer both are nouns.

Word	Noun	Adjective	Verb	Adverb
blow drier	Yes	No	No	No
hair dryer	Yes	No	No	No

As nouns, blow drier and hair dryer are synonyms defined as:

blow drier and hair dryer: a hand-held electric blower that can blow warm air onto the hair; used for styling hair

Other synonyms of blow drier include blow dryer, hair drier, hand blower.

blow drier (noun)	hair dryer (noun)
a hand-held electric blower that can blow warm air onto the hair; used for styling hair	a hand-held electric blower that can blow warm air onto the hair; used for styling hair