monster

1 monster /ˈmɑːnstɚ/ noun
plural monsters
1 monster
/ˈmɑːnstɚ/
noun
plural monsters
Britannica Dictionary definition of MONSTER
[count]
1 
: a strange or horrible imaginary creature
2 
informal : something that is extremely or unusually large
3 
: a powerful person or thing that cannot be controlled and that causes many problems
4 
a  : an extremely cruel or evil person
b  : a person (such as a child) who behaves very badly
2 monster /ˈmɑːnstɚ/ adjective
2 monster
/ˈmɑːnstɚ/
adjective
Britannica Dictionary definition of MONSTER
always used before a noun informal
: very popular and successful