Translation guide
A room or fixture containing a toilet, especially in British English. In Japanese, this is expressed with words for toilet or restroom, with distinctions for room vs. fixture, formality, and public vs. private settings.
トイレはどこですか？
Where is the toilet?
便器
toilet bowl
The small room containing a toilet, often separate from the bathroom, as commonly referred to in British English.
The most common and neutral word for a toilet room in Japanese. Used in homes, public places, and everyday conversation.
トイレはどこですか？
Where is the toilet?
すみません、トイレをお借りできますか？
Excuse me, may I use your toilet?
A polite and slightly formal word for restroom, often used in public places like restaurants or department stores. Literally 'hand-washing place'.
お手洗いはあちらです。
The restroom is over there.
A direct and somewhat crude word for toilet, similar to 'lavatory' or 'john'. Used mainly by older generations or in rough speech. Avoid in polite conversation.
Can sound vulgar or old-fashioned. Use トイレ or お手洗い instead.
便所に行ってくる。
I'm going to the john.
The physical toilet bowl or fixture, as opposed to the room.
The standard word for a toilet bowl or urinal. Used in technical, household, and shopping contexts.
便器を掃除する。
I clean the toilet bowl.
新しい便器を買いたい。
I want to buy a new toilet.
Western-style toilet (sitting type), as opposed to squat toilet. Useful when specifying type.
このトイレは洋式便器ですか？
Is this toilet a Western-style one?
Japanese-style squat toilet. Becoming less common but still found in older buildings.
和式便器の使い方がわからない。
I don't know how to use a squat toilet.
The formal term 'water closet' as used in architecture, plumbing, or older British contexts.
Literally 'flush toilet', this is the closest technical equivalent to 'water closet'. Used in architectural or plumbing contexts.
この建物には水洗便所が設置されている。
This building is equipped with water closets.
The abbreviation 'WC' is sometimes understood in Japan, especially in international contexts or signage, but it is not commonly used in everyday Japanese.
WCのマークを探してください。
Please look for the WC sign.
The English term 'water closet' is rarely used in modern conversation. In Japanese, do not attempt to translate it literally as 水のクローゼット. Use トイレ or お手洗い for the room, and 便器 for the fixture.
When asking to use the toilet in someone's home or a formal setting, お手洗いをお借りできますか (May I borrow the restroom?) is polite and natural. In casual settings, トイレ借りていい？ is fine.