公交 Traditional form: 公交 Pinyin (reading): gōngjiāo Definitions: public transportation mass transit abbr. for 公共交通 (gōnggòngjiāotōng) Characters: 公 - fair, equitable; public; duke 交 - to connect; to deliver, to exchange; to intersect; to mix Traditional characters: 公 - fair, equitable; public; duke 交 - to connect; to deliver, to exchange; to intersect; to mix