The Japanese word for toilet is
トイレ

Japanese Definition

Translations for toilet and their definitions

トイレ
1. n. bathroom, restroom, lavatory
2. n. toilet
3. n. Usage: While previously this term was considered rather crude when used to refer to the bathroom (being literally “toilet”), its usage is increasingly accepted, particularly in the younger gene
4. n. Usage: The honorific おトイレ is less often used, but is found, particularly in polite writing referring to toilets, rather than the room – if wishing to be polite when referring to the room

Pronunciation