noun
kitchen door; back door; service entrance
Refers to a secondary entrance to a house, typically near the kitchen, used by family or tradespeople rather than guests.
配達の人は勝手口から入ってください。
Delivery people, please come in through the service entrance.
勝手口
I forgot to lock the back door.
noun
host's entrance to a tea-ceremony room
Specific term in tea ceremony; the small door through which the host enters the tea room. Also called 茶道口.
See also: 茶道口
茶室では、亭主は勝手口から入ります。
In the tea room, the host enters through the host's entrance.