後方互換 こうほうごかん Meanings の-adjective, Noun backward compatible; downward compatible See also: 上位互換 (じょういごかん). See also: 前方互換 (ぜんぽうごかん). Kanji 後 after. Read as コウ. 方 direction. Read as ホウ. 互 mutual 換 swap. Read as カン. Words containing 後方互換 後方互換性 (こうほうごかんせい) backward compatibility Jinuma: Japanese Dictionary · Word lists