extinguisher vs fire extinguisher

extinguisher and fire extinguisher both are nouns.

Word	Noun	Adjective	Verb	Adverb
extinguisher	Yes	No	No	No
fire extinguisher	Yes	No	No	No

As nouns, extinguisher and fire extinguisher are synonyms defined as:

extinguisher and fire extinguisher: a manually operated device for extinguishing small fires

Other synonyms of extinguisher include asphyxiator.

extinguisher (noun)	fire extinguisher (noun)
a manually operated device for extinguishing small fires	a manually operated device for extinguishing small fires