1. a private [personal] affair [matter]
    • 他人の私事に口をはさむ
    • 「meddle in [《口》 poke one's nose into] other people's private affairs
    • 私事にわたって恐れ入りますが…
    • Excuse me for mentioning something personal, but....
  1. a personal [private] matter [affair]
    • 私事で恐縮ですが…
    • If I may mention a private matter....