防卫 (fáng wèi): to defend; defensive; defense

Tall, thick walls were built around the castle to defend against enemy attacks.

In the final minutes of the match, the team defended with all their might and ultimately preserved their lead.

When a stranger approached, the dog immediately pricked up its ears and assumed a defensive posture.

As border guards, their duty is to defend the border and prevent any illegal intrusion.

Network security software can defend against viruses and hacker attacks, protecting your personal information.

Facing fierce enemy attacks, the soldiers bravely defended without retreating a single step.