En suite means having its own bathroom attached. An en suite room, en suite facilities, the room is en suite.
It is a French phrase meaning in sequence and is used in English almost only about bathrooms. British hotel listings turned it into a noun as well, so a room may simply have an en suite.
1adjectiveen suiteHaving its own bathroom attached.
“Every bedroom in the hotel is en suite, so you don't have to share a bathroom.”
en suite is a quality.
French en suite means in sequence or forming a set.
Proto-Indo-European
*sekʷ-
French
en suite
English, today
en suite
From French en suite.
Etymology from Wiktionary, CC BY-SA
Practised in Hotel & Staying Away