mén​wèi

guard

门卫 (門衛) mén​wèi
guard noun
a person who is stationed at a gate or entrance to control access and provide security

The guard at the gate asked visitors to show their IDs and register.

sentry duty noun
the duty, task, or post of guarding a gate or entrance

He is on guard duty at the main gate of the barracks today.

Frequency

Movie subtitles
3.70 per million appears in 2% of films
Written text
2.55 per million

Sources

Definitions
CC-CEDICT