Noun:
1: circle ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point; "he calculated the circumference of the circle"
2: set, band, circle, lot an unofficial association of people or groups; "the smart set goes there"; "they were an angry lot"
3: circle something approximating the shape of a circle; "the chairs were arranged in a circle"
4: circle, lap, circuit movement once around a course; "he drove an extra lap just for insurance"
5: traffic circle, circle, rotary, roundabout a road junction at which traffic streams circularly around a central island; "the accident blocked all traffic at the rotary"
6: mexican valium, roofy, rophy, rope, r-2, roach, forget me drug, circle street names for flunitrazepan
7: dress circle, circle a curved section or tier of seats in a hall or theater or opera house; usually the first tier above the orchestra; "they had excellent seats in the dress circle"
8: circle, round any circular or rotating mechanism; "the machine punched out metal circles"
Verb:
1: circle travel around something; "circle the globe"
2: circle, circulate move in circles
3: encircle, environ, ring, round, surround, circle be around; "Developments surround the town"; "The river encircles the village"
4: encircle, circle form a circle around; "encircle the errors"