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