Word太ふとるfutoruMeaningto gain weight; to become fatPart of speechgodan - group 1, intransitive, verbPronunciationCourseJapaneseLessonVocabulary expansion 47Breakdown & UsagesConjugationsBreakdown of futorufat太Usages of futoruたくさん 食たべる と 太ふとります よ。takusan taberu to futorimasu yo.If you eat a lot, you'll gain weight (I inform you).運うん動どうしない と 太ふとります。undoushinai to futorimasu.If you don't exercise, you'll become fat.