noun
host's entrance to a tea-ceremony room
Specific architectural term in the context of a tea-ceremony room (chashitsu). Refers to the entrance used by the host (teishu) to bring in utensils and serve guests, distinct from the guest entrance (nijiriguchi).
茶道口から亭主が茶碗を運んでくる。
The host brings in the tea bowl through the sadōguchi.