落花生 らっかせい Also written ラッカセイ Meanings Noun peanut (Arachis hypogaea); groundnut Kanji 落 fall. Read as ラク. 花 flower 生 life. Read as セイ. Words containing 落花生 落花生油 (らっかせいゆ) peanut oil Jinuma: Japanese Dictionary · Word lists