"lavatories" in the noun sense
1. toilet, lavatory, lav, can, john, privy, bathroom
a room or building equipped with one or more toilets
2. washbasin, basin, washbowl, washstand, lavatory
a bathroom sink that is permanently installed and connected to a water supply and drainpipe where you can wash your hands and face
"he ran some water in the basin and splashed it on his face"
3. flush toilet, lavatory
a toilet that is cleaned of waste by the flow of water through it
Source: WordNet® (An amazing lexical database of English)
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