emergency room (noun) emergency room: medical emergencies area
Sinonime: active, all ears, bright, cagey, careful, circumspect, clever, fast on the draw, good hands, heads up, heedful, hip*, intelligent, jazzed, observant, on guard, on one's toes, on the ball, on the job, on the lookout, on the qui vive, perceptive, psyched up, quick*, ready, sharp, spirited, switched on, vigilant, wakeful, wary, watchful, wide-awake, wired, wise*, with it