pill

noun

1. something that resembles a tablet of medicine in shape or size
2. a dose of medicine in the form of a small pellet
3. a unpleasant or tiresome person
4. something unpleasant or offensive that must be tolerated or endured"his competitor's success was a bitter pill to take"
5. a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception