tacker vs staplegun

tacker and staplegun both are nouns.

Word	Noun	Adjective	Verb	Adverb
tacker	Yes	No	No	No
staplegun	Yes	No	No	No

As nouns, tacker and staplegun are synonyms defined as:

Other synonyms of tacker include staple gun.

tacker (noun)	staplegun (noun)
a hand-held machine for driving staples home	a hand-held machine for driving staples home
a sewer who fastens a garment with long loose stitches
a worker who fastens things by tacking them (as with tacks or by spotwelding)