(mathematics, for any point on a curve) The circle that has the same tangent, and the same curvature at the point on the curve.

To draw a wagon train into a circle to allow the wagons to provide cover when under attack. / (idiomatic) To prepare to defend against an attack or criticism.

(idiomatic) The group comprising one's closest friends or associates. / Used other than figuratively or idiomatically: see inner, circle.

(vulgar, slang) A group of males masturbating ("jerking off") together (with or without interpersonal contact).

(vulgar, slang) to participate in a circle jerk

Alternative spelling of Arctic Circle

A framework for the interpretation of a text which considers historical, linguistic, cultural, environmental, and individualistic contexts.

A club or informal group of people sharing knowledge of a specific subject.

(magic) A circle marked by a practitioner of magic, used as magical protection or to form a magical area.

simple past tense and past participle of circle jerk