レストルーム

noun

restroom; public toilet

A polite term for a public toilet, often used in department stores, hotels, and similar facilities.

• デパートのレストルームはとても清せい潔けつだった。

  The restroom in the department store was very clean.

noun

resting room (with toilet facilities)

A room for resting that usually includes toilet facilities; less common than the simple 'toilet' sense.

• 空くう港こうのレストルームで少すこし休やすんだ。

  I rested for a while in the airport's resting room.