gummed label vs paster

gummed label and paster both are nouns.

Word	Noun	Adjective	Verb	Adverb
gummed label	Yes	No	No	No
paster	Yes	No	No	No

As nouns, gummed label and paster are synonyms defined as:

Other synonyms of gummed label include sticker.

gummed label (noun)	paster (noun)
an adhesive label	an adhesive label
	a workman who pastes