[noun] 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"
[noun] an unofficial association of people or groups; "the smart set goes there"; "they were an angry lot" Synonyms:set, band, lot
[noun] something approximating the shape of a circle; "the chairs were arranged in a circle"
[noun] movement once around a course; "he drove an extra lap just for insurance" Synonyms:lap, circuit
[noun] a road junction at which traffic streams circularly around a central island; "the accident blocked all traffic at the rotary" Synonyms:traffic rotary, roundabout
[noun] 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" Synonyms:dress
[noun] any circular or rotating mechanism; "the machine punched out metal circles" Synonyms:round
[verb] travel around something; "circle the globe"