middle gate of a shinden-zukuri corridor
Historical architectural term: a gate placed midway along the corridor connecting an annex (対の屋) to a pond-side pavilion (釣り殿) in Heian-period palatial-style residences.
central gate of a temple
Refers to the gate situated between the main entrance gate and the main hall (本堂) in traditional Buddhist temple layouts.
middle gate of a tea garden
In tea ceremony gardens (露地), the gate that separates the outer garden (外露地) from the inner garden (内露地), marking a transition toward the teahouse.
In shinden-zukuri architecture, a chūmon was placed midway along the roofed corridor connecting the annex and the fishing pavilion.
At that old temple, passing through the chūmon, you see the main hall straight ahead.
In the tea garden leading to the teahouse, the chūmon divides the outer garden from the inner garden.
An annex building also connected by the same corridor.
Compound of 中 (middle) and 門 (gate). The reading ちゅうもん is the on'yomi. The term is used in specific traditional architectural contexts.