Alternative form of great-circle arc

(geometry) a segment of a great circle

(historical) An administrative grouping within the Holy Roman Empire in its Early Modern period, primarily for the organization of common defensive structure and the collection of taxes.

(historical) The practice of entertainers visiting troops where they were stationed and performing for them there.

Alternative form of circlish

(idiomatic) Let's start; let's begin (a journey, undertaking, etc.).

(theater, informal) The round of summer stock theater performances.

(Christianity) A celebration of the circumcision of Jesus in accordance with Jewish tradition.

(object-oriented programming) The problematic situation where a base class contains methods which mutate an object in a manner which may invalidate a (stronger) invariant found in a derived class, violating the Liskov substitution principle. For example, if a circle is modelled as a subtype of an ellipse, and the ellipse has a method that stretches it on one axis, the circle must also implement that method despite it making no sense for a circle.

(archaeology) A circular arrangement of wooden posts, interpreted either as a complex of freestanding poles or as the support for a large circular building.