en suite
US /ˌɑːn ˈswiːt/
UK /ˌɑːn ˈswiːt/

1.
a bathroom that is directly connected to a bedroom, for the sole use of the person or people in that bedroom
:
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The hotel room has an en suite bathroom.
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Each bedroom in the house has its own en suite.
1.
a room with an en suite bathroom
:
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We booked a double room with an en suite.
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The hotel offers several rooms with en suites.