classroom; lecture room; department (in a university); class; lessons; school (for a particular discipline)
infirmary (at a school, workplace, etc.); health center; nurse's office; nurse's room; sickroom; sick bay
single (room); room for one; private room (in a restaurant, etc.); private dining room; (toilet) stall
smoking room; smoking compartment
office (e.g. the Oval Office)
sickroom; hospital room; ward
library (usu. single-room); small library
laboratory; seminar room; professor's office
conference room; council room
waiting room; anteroom; antechamber; green room
drawing room; parlour; parlor; reception office
suffix for room numbers; suffix for apartment numbers
guest room (at a hotel); guest cabin (on a boat); passenger cabin (on a plane); drawing room
locker room; changing room; dressing room
section chief; laboratory manager; office head; room monitor
doctor's office; medical office; sickbay
same room; sharing a room; occupying the same room
break room; lounge (e.g. in an onsen); resting room
examining room; consultation room
operating room; operating theatre
dressing room; fitting room
president's office; director's office
shower stall; shower cubicle; shower room
legal wife (of a noble) (as opposed to a concubine); room for receiving guests; heir; successor
tearoom; tea house; tea-ceremony room; tea arbour; tea arbor
interrogation room; interview room; sweatbox
pilothouse; wheelhouse; steering house
control room; control booth
lecture hall; lecture room
office kitchenette; room with facilities for boiling water
exhibition room (e.g. museum); showroom (for goods)
cargo hold (of an aircraft, ship, etc.); cargo bay
nap room (in an office, fire station, etc.)
cockpit; control cabin; flight compartment; pilot compartment; control room
cook-house; galley; kitchen
toilet; lavatory; powder room
operating room; operating theatre
(indoor) observation deck; observation room; observatory
outside (the room, building); outdoors
no vacancy; full occupancy
counseling room; counselling room; consulting room; advisory centre
visiting room; visitation room
staffroom; teachers' lounge; faculty lounge
compartment (of a train); interior (of a car); parking bay; parking space
research office; research division; inquiry section
machine room; machinery room; engine room; machine house
vacant room; vacancy; unoccupied room; empty room
duty room; staff room; waiting room
public relations department
coffee room (hotel, office building, etc.); tea room
stairwell; stair hall; staircase
study room; study hall; learning room
front room; front parlor; lobby; anterior ventricle
freezing compartment; freezer
changing room; dressing room; locker room
assembly room; assembly hall; meeting room; community room
being in one's room (office, etc.)
drivers cab; operator's cab
maternity room; delivery room
computer room; computer lab
computer room; computer lab
Japanese (school) lunchroom; Japanese (school) cafeteria
vacant room; vacancy; unoccupied room; empty room
trunk (of a car); boot; luggage space; cargo compartment
equipment room; supply room; storage room
crisper (e.g. in refrigerator); vegetable drawer; produce compartment
cold room; refrigerated room; cold compartment (e.g. of a refrigerator)
chemistry laboratory; chemical laboratory
isolation room; quarantine room; isolation ward
radio room; wireless room
drafting room; drawing office; drawing room
maternity room; delivery room
holding cell; drunk tank; isolation room; quarantine room
confinement room; detention room; brig (in a warship)
office (usu. for construction, maintenance, services, etc.)
nursery school; day nursery; nursery room
projection room; projection booth
breeding facility (e.g. lab. animals); breeding room
opening (e.g. library, museum, etc); being open; making a room accessible to people; (organization) being available to take on work
observation room (in a hospital, police station, etc.)
interrogation room; interview room; sweatbox
room; chamber; monk in charge of business in the monks' quarters; bedroom (of a married couple); locule (in a plant ovary); atria and ventricles
room for zazen meditation; room for Buddhist practices; Zen monk's quarters; head priest (of a Zen temple)
day room (e.g. on a liner); lounge; social hall
drawing and manual arts room; arts and craft room
luggage compartment; cargo bay (aircraft); baggage compartment
ice house; ice compartment; ice-making room
recording room; recording studio
room for rent (lease); room to let; office space for rent (lease)
situation room; crisis management office
room for breast-feeding; nursing room
press room; press gallery
solitary cell; solitary confinement cell; isolation cell
design department; design studio; design office
nursery; nursing room; baby-care room
hotel room with both Western and Japanese elements (usu. with Western-style beds and a separate tatami-floored living area)
emergency room; ER; emergency department; ED; accident and emergency department; A&E
clean room (e.g. in semiconductor manufacturing); cleanroom
room rent; room rate (hotel, etc.)
recovery room (in a hospital); recuperation room
hyperbaric oxygen chamber
proofroom; proof-reading room; reading room
accounting room; accounting office; cashier's office
Court of the Star Chamber (England)
sterile room; bioclean room
vestibule; antechamber; entrance area; airlock
listening room (e.g. in a record store); listening booth
suppression pool (nuclear reactor); pressure suppression chamber
central control room; main control room
room for overnight guests; accommodation room; guestroom
VIP room; VIP lounge; room reserved for special guests
counselling office; guidance room
tool storage room; equipment storage room
shared room (in a hospital)
science classroom; (school) science lab
cuddy; small cabin or shelter on a sailboat
student guidance office; student counseling room
art room (e.g. in a school); art studio
communication command center (for emergency calls)
manager's office (e.g. of an apartment building); caretaker's room
treatment room (e.g. in a hospital)
playroom; recreation room
examination room; treatment room; doctor's office
National Cybersecurity Office (Japan); NCO