boar

noun

1. A wild boar (Sus scrofa), the wild ancestor of the domesticated pig.

   “And drivers on local roads have encountered traveling boars, which can run at up to 30 miles an hour, according to one local resident, who said a friend’s car collided with a 132-pound animal, totaling the vehicle, as well as killing the boar.”

2. A male pig.

   “"Bull hogs," or boars, which are uncastrated male pigs, tend to have a dark, gamy flesh not appreciated by everyone.”

3. A male boar (sense 1).
4. A male bear.
5. A male guinea pig.