拡散 かくさん kakusan spreading JLPT N1 noun suru verb Common word Other meanings 2. diffusion (of light, gas) The kanji in this word 拡 broaden, extend, expand JLPT N1 · Strokes 8 散 scatter, disperse, spend JLPT N3 · Strokes 12 In this level かき回す 佳句 画 学芸 格差 学士 各種 隔週 確信 革新 Back to the JLPT N1 list Practise these words