(zoology) Any any of the extinct ammonites in the family Araxoceratidae.

(grammar) Initialism of verb intransitive or intransitive verb (often in dictionaries)

(geometry) The amount by which the sum of the three angles of a spherical triangle exceeds two right angles. The spherical excess is proportional to the area of the triangle.

An ancient Buddhist kingdom of Central Asia, located in modern-day Xinjiang, China. / Alternative form of Kuqa