pill

(noun) something that resembles a tablet of medicine in shape or size.

(noun) a dose of medicine in the form of a small pellet. Synonyms: lozenge, tablet, tab.

(noun) a unpleasant or tiresome person.

(noun) something unpleasant or offensive that must be tolerated or endured. Example: "His competitor's success was a bitter pill to take."

(noun) a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception. Synonyms: birth control pill, contraceptive pill, oral contraceptive pill, oral contraceptive, anovulatory drug, anovulant.