1A room; an enclosed space inside a building used for living or working, such as a bedroom or living room.
部屋の窓を開けて換気をした。
I opened the windows of the room to air it out.
友達の部屋で映画を見た。
I watched a movie in my friend's room.
明日は掃除で部屋を片付ける予定だ。
I'm planning to clean and tidy up my room tomorrow.
この部屋は日当たりがよくて暖かい。
This room gets a lot of sun and is warm.
2An apartment or flat rented or owned as a dwelling; often used in phrases like renting or looking for a place to live.
大学の近くで一人暮らし用の部屋を探している。
I'm looking for an apartment near the university to live in alone.
この部屋は駅から近く家賃も手ごろだ。
This apartment is close to the station and the rent is reasonable.
来月、新しい部屋に引っ越すことにした。
I've decided to move to a new apartment next month.
3A shortened form of 相撲部屋 (sumo stable) — the organization or building where sumo wrestlers belong, train, and live together.
彼は有名な部屋に入門して横綱を目指している。
He joined a famous sumo stable and is aiming to become a yokozuna.
部屋同士の合同稽古は朝早くから始まる。
Joint training between stables starts early in the morning.