hand blower vs dryer

hand blower and dryer both are nouns.

Word	Noun	Adjective	Verb	Adverb
hand blower	Yes	No	No	No
dryer	Yes	No	No	No

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

hand blower: a hand-held electric blower that can blow warm air onto the hair; used for styling hair
dryer: an appliance that removes moisture

Other hypernyms of hand blower include blower, drier.

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