monster

US /ˈmɑːn.stɚ/
UK /ˈmɑːn.stɚ/
"monster" picture
1.

an imaginary creature that is typically large, ugly, and frightening, or a real creature that is large and frightening

:
The child was scared of the monster under his bed.
They discovered a deep-sea monster previously unknown to science.
2.

a person of a cruel or wicked nature

:
He was a true monster for what he did to those innocent people.
Only a monster could commit such a heinous crime.
1.

extremely large

:
They built a monster new stadium.
The company made a monster profit last quarter.