English Reference

Phrasal verb

frighten off

Definition

phrasal verb. to make a person or animal go away by making them feel scared.

phrasal verb. to cause a person or animal to leave or avoid a situation by inducing fear or apprehension; often used when a potential threat or unwanted presence is removed.

Examples

“The loud dog barked to frighten off the burglars.”

“The company raised its prices so much that it managed to frighten off most of its loyal customers.”

“Conservationists worry that increased tourist activity in the valley will frighten off the rare birds that nest there during the spring.”

Examples

simple

“The loud dog barked to frighten off the burglars.”

contextual

“The company raised its prices so much that it managed to frighten off most of its loyal customers.”

complex

“Conservationists worry that increased tourist activity in the valley will frighten off the rare birds that nest there during the spring.”

Usage

this is a transitive phrasal verb that can take either a physical or abstract object.

Teaching tip

compare with 'scare off', which is more common in casual speech; 'frighten off' is slightly more formal but still very natural in everyday British and American English.

Pitfall

The noise frightened off them.

The noise frightened them off.

when the object is a pronoun like 'them', it must go between the verb and the particle.

Phrasal verb

Particles

off

Separability

optional

Pattern

frighten + object + off

Synonyms

deterrepelscare awayscare off

Antonyms

Grammar

This entry

Level
B2 · Upper Intermediate
Updated

Scan code

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English Reference