something that serves as a protection or defense or that ensures safety.

a permit for safe passage.

a guard or convoy.

a mechanical device for ensuring safety.

to guard; protect; secure.

noun

endangerment , harm , hurt , injury

verb

endanger , harm , hurt , injure , lay open

noun

aegis , armament , armor , buffer , bulwark , convoy , defense , escort , guard , screen , security , shield , surety , ward , preservation , protection , protector

verb

assure , bulwark , conserve , cover , defend , ensure , fend , guard , insure , look after , preserve , ride shotgun * , save , screen , secure , shield , watch over , protect , ward , armament , convoy , defense , escort , harbor , protection , security , umbrella