Save Type Surname (from location) Usage Japanese Scripts 川口(Japanese Kanji) Pronounced Pron. KA-WA-GOO-CHEE [key·IPA] Meaning & History Means "mouth of the river", from Japanese 川 (kawa) meaning "river, stream" and 口 (kuchi) meaning "mouth, entrance". Categories water Entry updated August 16, 2017 ·