投入 とうにゅう tounyuu throwing in JLPT N1 noun suru verb Common word Other meanings 2. investment, commitment (of funds, personnel, etc.), injection, infusion 3. launching (a product into the market), introduction The kanji in this word 投 throw, discard, abandon JLPT N3 · Strokes 7 入 enter, insert JLPT N5 · Strokes 2 In this level 尊い 同等 堂々 尊ぶ どうにか 導入 当人 同封 逃亡 冬眠 Back to the JLPT N1 list Practise these words