honour of the family; honor of the family
家声を汚すような行為は許されない。
Actions that tarnish the family's honor are unforgivable.
先祖代々の家声を守ることが使命だ。
It is our mission to protect the family honor passed down for generations.
彼の活躍により家声が大いに高まった。
The family's honor was greatly elevated by his achievements.