When was the pig first domesticated?
Domestic pig
barrow - a castrated male swine
boar - a mature male swine; often a wild or feral swine
boneen - a very young pig (Ireland)
farrow (verb) - to give birth to piglets
farrow (noun) - a litter of piglets
gilt - a female pig that has never been pregnant or is pregnant for the first time
hog - a domestic swine, especially a fully-grown specimen
parcel - collective noun
pig - strictly, an immature swine; more generally, any swine, especially of the domestic variety
piglet - a very young pig
queen -  a female pig that has never been mated
savaging - the act of a sow attacking her own piglets, sometimes killing and cannibalising them
shoat - a young pig, especially one that has been weaned
sounder - collective noun
sow - a mature female swine
swine (singular and plural) - a hog; hogs collectively or generally
swineherd - one who tends to swine raised as livestock; a pig farmer