As nouns the difference between anteroom and restroom
is that anteroom is a room before, or forming an entrance to, another; a waiting room while restroom is a public room containing a toilet.
anteroom
English
Alternative forms
* ante-room
Noun
(
en noun)
A room before, or forming an entrance to, another; a waiting room.
Synonyms
* antechamber
restroom
English
Alternative forms
* rest room
Noun
(
en noun)
(US) A public room containing a toilet.
- Could you tell me where I can find the restroom?
Synonyms
* washroom (Canada)
* WC, lavatory (Britain)