■ noun
1》 extreme fear.
↘the use of ~ to intimidate people.
↘a cause of ~.
↘( the Terror ) the period of the French Revolution when the ruling Jacobin faction ruthlessly executed anyone considered a threat to their regime.
2》 (also holy ~ ) informal a person causing trouble or annoyance.
Origin
ME: from OFr. terrour , from L. ~ , from terrere 'frighten'.