lavatory

US /ˈlæv.ə.tɔːr.i/
UK /ˈlæv.ə.tɔːr.i/
"lavatory" picture
1.

a room or building containing a toilet or toilets

:
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Excuse me, where is the nearest lavatory?
•
The airplane had a small lavatory at the back.
:
toiletrestroombathroomwashroomWC