noun
east entrance; east exit
Refers to the east-side entrance or exit of a station, building, or similar facility. The distinction between entrance and exit depends on context; often used in station names.
駅の東口で待ち合わせましょう。
Let's meet at the east exit of the station.
この建物の東口は朝7時に開きます。
The east entrance of this building opens at 7 a.m.
Compound of 東 (ひがし, 'east') and 口 (ぐち, 'entrance/exit').