blow drier vs blow dryer

blow drier and blow dryer both are nouns.

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

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

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

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

blow drier (noun)	blow 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