a room in which
outer garments, hats, umbrellas, etc., may be left temporarily, as in a club, restaurant, etc.; checkroom.
a room adjacent to a legislative chamber or legislative room, where legislators may leave their coats, relax, or engage in informal conversation.
3. British. b.
a baggage room
, as at a railway station, where packages and luggage may be left temporarily or checked through to one's destination.