1. phrasal verb
If you frighten away a person or animal or frighten them off, you make them afraid so that they run away or stay some distance away from you.
[V P n] ⇒ The fishermen said the company's seismic survey was frightening away fish.
[V n P] ⇒ He fired into the air, hoping that the noise would frighten them off.
2. phrasal verb → frighten To frighten someone away or frighten them off means to make them nervous so that they decide not to become involved with a particular person or activity.
[V n P] ⇒ Building society repossessions have frightened buyers off.
[V P n] ⇒ The government is convinced that the bombers want to frighten away foreign investors.
COBUILD Advanced English Dictionary. Copyright © HarperCollins Publishers