Collocations for frighten - verb

really
The prospect of war really frightens me.

almost
easily
a man who doesn't frighten easily

want to
not mean to
I didn't mean to frighten you.

try to

frighten sb to death, frighten the life out of sb (BrE)
Don't creep around like that! You frightened me to death!

Frighten is used with these nouns as the object:
horse