cloakroom vs coatroom

cloakroom and coatroom both are nouns.

Word	Noun	Adjective	Verb	Adverb
cloakroom	Yes	No	No	No
coatroom	Yes	No	No	No

As nouns, cloakroom and coatroom are synonyms defined as:

cloakroom and coatroom: a room where coats and other articles can be left temporarily

cloakroom (noun)	coatroom (noun)
a room where coats and other articles can be left temporarily	a room where coats and other articles can be left temporarily
a private lounge off of a legislative chamber