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

Example: "He calculated the circumference of the circle"

An unofficial association of people or groups

Example: "The smart set goes there"

Something approximating the shape of a circle

Example: "The chairs were arranged in a circle"

Movement once around a course

Example: "He drove an extra lap just for insurance"

A road junction at which traffic streams circularly around a central island

Example: "The accident blocked all traffic at the rotary"

Street names for flunitrazepam

A curved section or tier of seats in a hall or theater or opera house; usually the first tier above the orchestra

Example: "They had excellent seats in the dress circle"

Any circular or rotating mechanism

Example: "The machine punched out metal circles"