(mathematics) being linear

(mathematics) linear

an octagon

Peking opera

liberal arts, humanities, social sciences, and fine arts

(grammar) a verbal inflectional category; the realis form as used in classical Japanese. Indicates that something is already the case, or is in the process of happening. The 已然形 has evolved into the 仮定形 (conditional form) now used in modern Japanese.

system, family / style

warp (thread running lengthwise) / longitude / meridian (in traditional Chinese medicine) / elapse, pass through / manage / hang (by the neck) / ordinary, usual / scripture, sutra / menstruation

plan, total

(geography) a longitude (angular distance)