all-day sucker vs lollipop

all-day sucker and lollipop both are nouns.

Word	Noun	Adjective	Verb	Adverb
all-day sucker	Yes	No	No	No
lollipop	Yes	No	No	No

As nouns, all-day sucker and lollipop are synonyms defined as:

Other synonyms of all-day sucker include sucker.

all-day sucker (noun)	lollipop (noun)
hard candy on a stick	hard candy on a stick
	ice cream or water ice on a small wooden stick