Vocabulary What does やせる (yaseru) mean? やせる means to get thin, to lose weight. Quick factsReadingやせるRomajiyaseruLevel (estimated, JLPT framework)N4 やせるやせるN4 · estimated, JLPT frameworkyaseruto get thin, to lose weightGenkiGenki 7Example sentences彼女(かのじょ)は前(まえ)よりやせましたね。She's gotten thinner than before, hasn't she?病気(びょうき)で少(すこ)しやせたようです。He seems to have lost a little weight due to illness.