noun

• (broadly) A small, usually round or cylindrical object designed for easy swallowing, usually containing some sort of medication.
  "Take two pills every hour in the apyrexia of intermittent fever, until eight are taken."
• (broadly) A small, usually round or cylindrical object designed for easy swallowing, usually containing some sort of medication.
• (informal, uncountable, definite, i.e. used with "the") Contraceptive medication, usually in the form of a pill to be taken by a woman; an oral contraceptive pill.
  "Jane went on the pill when she left for college."
• (slang) A contemptible, annoying, or unpleasant person.
  "You see, he's egging Phyllis on to marry Wilbert Cream. [...] And when a man like that eggs, something has to give, especially when the girl's a pill like Phyllis, who always does what Daddy tells her."

verb

• (intransitive, textiles) Of a woven fabric surface, to form small matted balls of fiber.
  "During processing, inferior short fibers (which can cause pilling and itching) are removed to enhance the natural softness of the yarn and to improve its wash-and-wear performance."
• (transitive) To medicate with pills; to administer pills to.
  "She pills herself with all sorts of herbal medicines."
• (transitive, Internet slang) To persuade or convince someone of something.
• (transitive, UK, slang, dated) To blackball (a potential club member).
  "“I pilled him because he is a liar,” said Thackeray. “He calls himself 'ill' when he isn't.”"

verb

• (obsolete) To peel; to remove the outer layer of hair, skin, or bark.
• (obsolete) To pillage; to despoil or impoverish.
  "So syr Lucan departed for he was greuously wounded in many places And so as he yede he sawe and herkened by the mone lyght how that pyllars and robbers were comen in to the felde To pylle and robbe many a ful noble knyghte of brochys and bedys of many a good rynge & of many a ryche Iewel / and who that were not deed al oute"

noun

• (obsolete) The peel or skin.
  "Some be covered with crusts or hard pills, as the locust"