Chinese edit

 
inside; inner; internal
inside; inner; internal; within; interior
 
opening; door; gate
opening; door; gate; doorway; gateway; valve; switch; way to do something; knack; family; house; (religious) sect; school (of thought); class; category; (taxonomy) phylum or division
trad. (內門)
simp. (内门)
 
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Proper noun edit

內門

  1. () Neimen (a district of Kaohsiung, Taiwan)