Translation guide
In Japanese, expressing 'same room' depends on context: whether you mean sharing a room (e.g., hotel, dorm), being in the same room at the same time, or referring to the same room as previously mentioned. The most common expressions use 同じ部屋 (onaji heya) or compound verbs like 同室する (dōshitsu suru).
We stayed in the same room.
I don't want to sleep in the same room as him.
A more formal or written way to say 'share a room'. Often used in contexts like hospital rooms or dormitories.
I shared a room with him in college.
Specifically means sharing a room with someone you don't know well, like in a hotel or inn. Often used in travel contexts.
This inn has shared rooms.
To say that two or more people are present together in one room.
To indicate that a room is the identical one just talked about.
Works for 'the same room' in the sense of 'that very room'. Context clarifies the meaning.
We'll use the same room as yesterday.
Let's continue the meeting in the same room as before.
同じ部屋 (onaji heya) is the everyday phrase for 'same room' in most contexts. 同室 (dōshitsu) is more formal and often implies a shared living/sleeping arrangement, like in a dorm or hospital. 同室する is a verb meaning 'to share a room'.
It's awkward to stay in the same room as him.
We shared a room during the training.
If you want to say 'a room like this one' or 'the same kind of room', use この部屋と同じような部屋 (kono heya to onaji yō na heya), not just 同じ部屋. 同じ部屋 usually means the identical room, not a similar one.
The patient was talking with family members who were in the same room.