- 1an omnivorous domesticated hoofed mammal with sparse bristly hair and a flat snout for rooting in the soil, kept for its meat.
- Sus domesticus (with numerous varieties), family Suidae (the pig family), descended from the wild boar and domesticated over 8,000 years ago. The pig family also includes the warthog and babirusa, but the similar peccaries are placed in their own family
- 2an oblong mass of iron or lead from a smelting furnace. See also pig iron.
verb (pigs, pigging, pigged)[no object]
Middle English: probably from an Old English word represented in picbrēd 'acorn', literally 'pig food'