adjective
Definition: Relating to a military operation aimed at causing harm or damage to an enemy.
Example: The soldiers used attack helicopters to support their mission.
intransitive verb
Definition: To make a sudden or violent effort to harm someone or something.
Example: The enemy attacked during the night.
noun
Definition: An act of trying to harm someone or something, or a strong criticism or comment against someone or something.
Example: The sudden attack on the city surprised everyone.
transitive verb
Definition: To use force or violence against someone or something, or to criticize someone strongly.
Example: The soldiers planned to attack the enemy base at dawn.