bell ringer vs home run

bell ringer and home run both are nouns.

Word	Noun	Adjective	Verb	Adverb
bell ringer	Yes	No	No	No
home run	Yes	No	No	No

As nouns, bell ringer and home run are synonyms defined as:

bell ringer and home run: something that exactly succeeds in achieving its goal

Other synonyms of bell ringer include bull's eye, mark.

bell ringer (noun)	home run (noun)
something that exactly succeeds in achieving its goal	a base hit on which the batter scores a run
someone who plays musical handbells	something that exactly succeeds in achieving its goal
a person who rings church bells (as for summoning the congregation)