to threaten

to frighten

to scare the ghost, who are you trying to scare?

frightened (spoken)

to threaten

to deter

means someone experienced plenty of threats and intimidation since small, already got used to it and will no longer feel scare; it is usually used as a response to others' verbal attack or intimidation.

(adjective + verb) frightened; panicked; scared

to attain a goal by arousing fear

to scare

to be scared senseless

startled

to faint from fear

to intimidate

to scare

to be terrified

To threaten; to point a gun at people and scare them

scare the life out of someone, scare someone to death

to scare away

to scare (someone) [colloquial]

to scare (someone) [colloquial]

to terrify

to be frightened