beast
//biːst//
Noun
beastSingular
beastsPlural
1
A large, wild animal, especially one that is dangerous or fierce.
A large beast was spotted in the forest.
2
A cruel, brutal, or uncivilized person.
He acted like a beast when he lost his temper.
3
(informal) Something impressively large, powerful, or difficult to deal with.
This new computer is a beast—it can run any program without slowing down.