contraceptive pill vs oral contraceptive

contraceptive pill and oral contraceptive both are nouns.

Word	Noun	Adjective	Verb	Adverb
contraceptive pill	Yes	No	No	No
oral contraceptive	Yes	No	No	No

As nouns, contraceptive pill and oral contraceptive are synonyms defined as:

contraceptive pill and oral contraceptive: a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception

Other synonyms of contraceptive pill include anovulant, anovulatory drug, birth control pill, oral contraceptive pill, pill.

contraceptive pill (noun)	oral contraceptive (noun)
a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception	a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception