共线 Traditional form: 共線 Pinyin (reading): gòngxiàn Definitions: (geometry) collinear concurrency (a single road serving as a section of multiple routes) Characters: 共 - all, total; together; to share 线 - line, thread, wire; clue, trail Traditional characters: 共 - all, total; together; to share 線 - line, thread, wire; clue, trail