illegitimacy (being born out of wedlock)

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

personal grudge

Kyūjitai form of 私鉄 (“private railway”)

come home in triumph

(linguistics) "dialect dressup": appropriation of dialect features by a non-dialect speaker

Obsolete spelling of ロンドン

London (the capital city of the United Kingdom; capital city of England) / London (a city in southwestern Ontario, Canada)

(geometry) obtuse angle

(both literally and figuratively) absolute lowest point, rock bottom, very bottom / very bad situation, catastrophic situation, the abyss