birth control vs birth prevention

birth control and birth prevention both are nouns.

Word	Noun	Adjective	Verb	Adverb
birth control	Yes	No	No	No
birth prevention	Yes	No	No	No

As nouns, birth control and birth prevention are synonyms defined as:

birth control and birth prevention: limiting the number of children born

Other synonyms of birth control include family planning.

birth control (noun)	birth prevention (noun)
limiting the number of children born	limiting the number of children born