one's personal thoughts

private life, personal life

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”)

mind, heart, spirit, soul; thoughts, ideas / attention, mind, interest / heart, feelings, emotion, emotional state / wholeheartedness, sincerity, true heart

idea / mind / heart / desire

trial / experiment

a change of mind, a change of heart / inconstancy / faithlessness