frighten off vs scare off

frighten off and scare off both are verbs.

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

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

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

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

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