openness, not being closed / openness, allowing free entry and exit / openness, frankness

(firefighting) a fire alarm, a fire alert, a fire warning (a sound, not a device)

a unit of area (1cm × 1cm), symbol cm², (UK) square centimetre, (US) square centimeter.

a unit of area (1km x 1km), symbol km², (UK) square kilometre, (US) square kilometer.

broadcasting station: radio station, TV station, etc.

gemstone

report, information

news report, news, coverage, reportage

remuneration, reward, recompense / toll

(education) law school