門 - gate, counter for cannons

main gate; main entrance

back gate

strait with a roaring tidal ebb and flow; whirlpool; maelstrom

school gate

division (of a larger group); branch; field; class (subclass); group; category; department

noted family; noble family

one's pupil; one's student; one's follower

turning someone away (at the front door); refusing a visitor; shutting the door in someone's face; refusal of admission

vocational school; technical school

family; clan; kin

before the gate; in front of the gate

barrier; checkpoint; gateway