contraceptive pill vs oral contraceptive pill

contraceptive pill and oral contraceptive pill both are nouns.

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

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

contraceptive pill and oral contraceptive pill: 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.

contraceptive pill (noun)	oral contraceptive pill (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