1 [mass noun] extreme fear:people fled in terror [in singular]:she had a terror of darkness
the use of extreme fear to intimidate people:weapons of terror
[often as modifier] terrorism:a terror suspecta terror attack
[in singular] a person or thing that causes extreme fear:his delivery is the terror of even world-class batsmen
(the Terror) the period of the French Revolution between mid 1793 and July 1794 when the ruling Jacobin faction, dominated by Robespierre, ruthlessly executed anyone considered a threat to their regime.Also called Reign of Terror.
2 (also holy terror) informal a person, especially a child, that causes trouble or annoyance.
have (or hold) no terrors for someone
not frighten or worry someone:death held no terrors for him