1) 口約束くちやくそく Parts 口 約 束 #26,382 Inflections of 口約束 Class Suru verb Stem Inflected ending ✕ Link copied! くちやくそく [3] Meaning Shirabe Noun Suru verb Transitive verb Intransitive verb verbal promise; one's word Kanji 口 コウ mouth 約 ヤク promise, approximately, shrink 束 ソク bundle, sheaf, ream Forms 口約束#26,382口約束くちやくそくくちやくそくくちやくそく
