Закройте дверь.

English Translation

Close the door.

:small_blue_diamond: Закройте дверь
Always means “Close the door” — not “lock.”

It refers to moving the door into the closed position, but not securing it with a lock.

Example:
Пожалуйста, закройте дверь — сквозняк.
Please close the door — there’s a draft.