内蔵

N1 埋蔵 maizou buried property, treasure trove N1 冷蔵 reizou refrigeration N2 ～内 ～nai inside ~ N2 貯蔵 chozou storage, preservation N2 内科 naika internist clinic, internal medicine N2 内線 naisen phone extension N3 内容 naiyou subject, contents, detail N4 内 uchi inside, within, among N4 以内 inai within, not more than

N3 内 nai, dai / uchi inside, within, between N2 蔵 zou, sou / kura, osa.meru, kaku.reru storehouse, hide, own