noun
lavatory
LAV-uh-tor-ee/ˈlævətɔːri/
A toilet facility for bodily waste and personal washing.
The small lavatory contains a sink and a closed toilet.

Etymology
A lavatory was originally a place for washing, and the English word first meant a washbasin. Its meaning broadened to a washroom, then became a polite term for a toilet room.
In context
This is the manifold. It connects every lavatory on the plane to that. [music] If you block the main line, you aren't just breaking one toilet.
More examples
- The lavatory is down the hall on your left.
- Both lavatories have soap and paper towels.
- The lavatory flushes automatically after each use.
Forms
lavatory · lavatories