Pig, n.
 1. The young of swine, male or female; also, any swine; a hog. “Two pigges in a poke.”
 2. Zool. Any wild species of the genus Sus and related genera.
 3.  An oblong mass of cast iron, lead, or other metal. See Mine pig, under Mine.
 4. One who is hoggish; a greedy person. [Low]
 Masked pig. Zool. See under Masked.
 Pig bed Founding, the bed of sand in which the iron from a smelting furnace is cast into pigs.
 Pig iron, cast iron in pigs, or oblong blocks or bars, as it comes from the smelting furnace. See Pig, 4.
 Pig yoke Naut., a nickname for a quadrant or sextant.
 A pig in a poke (that is, bag), a blind bargain; something bought or bargained for, without the quality or the value being known. [Colloq.]