Translation of "Washroom" in Japanese

Don't leave your personal belongings in the washroom.

洗面所には、私物を放置しないこと。

Apparently, you can hear a girl's sobs coming from the closed-off washroom in that school building at midnight.

あそこの校舎にある使用禁止のトイレ、夜中になると女の子のすすり泣く声が聞こえてくるんだって。

- Where is the bathroom?
- Where's the restroom?
- Where is the toilet?
- Where's the toilet?
- Where is the restroom?
- Where is the washroom?
- Where's the waiting room?

- トイレはどこですか。
- お手洗いはどこですか。