scare off vs frighten off

scare off and frighten off both are verbs.

Word	Noun	Adjective	Verb	Adverb
scare off	No	No	Yes	No
frighten off	No	No	Yes	No

As verbs, scare off and frighten off are synonyms defined as:

scare off and frighten off: cause to lose courage; to be daunted; to be scared away

Other synonyms of scare off include dash, daunt, frighten away, pall, scare, scare away.

scare off (verb)	frighten off (verb)
cause to lose courage; to be daunted; to be scared away	cause to lose courage; to be daunted; to be scared away