[n] large mechanical apparatus with seats for children to ride on
[n] a road junction at which traffic streams circularly around a central island; "the accident blocked all traffic at the rotary"
[adj] deviating from a straight course; "a scenic but devious route"; "a long and circuitous journey by train and boat"; "a roundabout route avoided rush-hour traffic"
[adj] marked by obliqueness or indirection in speech or conduct; "the explanation was circuitous and puzzling"; "a roundabout paragraph"; "hear in a roundabout way that her ex-husband was marrying her best friend"