a privately-owned ricefield, especially one under the historical 律令 (Ritsuryō) system

personal grudge

Kyūjitai form of 私鉄 (“private railway”)

epicenter(AmE), epicentre(BrE) - the point on the Earth's surface directly above the focus of an earthquake. / (figuratively) The focal point of any activity, especially if dangerous or destructive .

intellectual / the intelligentsia

source of a river

The hiragana syllable ち (chi). Its equivalent in katakana is チ (chi). It is the seventeenth syllable in the gojūon order; its position is た行い段 (ta-gyō i-dan, “row ta, section i”).

七月, 7月: July

世知: worldly wisdom

蜂: bee