Other forms: roundabouts
A roundabout is an intersection that uses a circular junction instead of stoplights or stop signs to manage traffic flow. Instead of every car stopping, they enter the roundabout slowly, and traffic moves almost continuously.
In the UK, an amusement park ride that moves in a circle, like a carousel, is also a roundabout, but in North America this noun almost always means what's sometimes called a "traffic circle" or a "rotary." As an adjective, roundabout describes things that aren't straightforward, but are indirect or unclear: "After his roundabout confession, I'm not even sure he realizes what he did wrong."