Synonyms for Checkroom:

n.

apartment, auditorium, ballroom, closet, chamber, coat check, coatroom, cloakroom, baggage room, room, locker, clubhouse, bathroom. artifact (noun)
left-luggage office.
checkroom (noun)
left-luggage office.

Other synonyms:

cloakroom, clubhouse, ballroom, coat check, coatroom, bathroom. chamber. apartment. wardrobe
closet.
Other relevant words:
ballroom, closet, locker, cloakroom, coatroom, auditorium, chamber, apartment, room, baggage room, clubhouse, bathroom.