This is the 1145th most frequent Japanese word.
入り口
Entrance.
Here, '入り口' refers to the entrance of a place, serving as a location where to perform the requested action of removing shoes.
入り口で靴を脱いでください。
Please take off your shoes at the entrance.
In this context, '入り口' is the physical entrance or gate of the museum that operates within specified hours.
この博物館の入り口は８時に開きます。
The entrance of this museum opens at 8 o'clock.
Here, '入り口' is used metaphorically to describe the starting point or gateway to new experiences.