Beast/biːst/ Definition 1 of 4Pro Tip 1/3Wild Context Use 'beast' for animals in a natural, wild habitat, not for typical home pets. He photographed every beast prowling the African savannah. Pro Tip 2/3Size Matters Implies a larger size, 'beast' wouldn't commonly describe small animals. A massive bear, truly a beast, roamed the woods. Pro Tip 3/3Strength Implication A 'beast' often connotes strength or power, not just any animal. The elephant, a gentle beast, has incredible strength.