bull's eye vs home run

bull's eye and home run both are nouns.

Word	Noun	Adjective	Verb	Adverb
bull's eye	Yes	No	No	No
home run	Yes	No	No	No

As nouns, bull's eye and home run are synonyms defined as:

bull's eye and home run: something that exactly succeeds in achieving its goal

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

bull's eye (noun)	home run (noun)
in target shooting: a score made by hitting the center of the target	a base hit on which the batter scores a run
something that exactly succeeds in achieving its goal	something that exactly succeeds in achieving its goal
the center of a target