2 sentences for 私房 (sī​fáng)

1. 他背着妻子存了一点私房。

   tā bèi zhe qī​zi cún le yī​diǎn sī​fáng.

   He saved some private money behind his wife's back.

   Source: Dong Chinese Dictionary

2. 这几间正房都是他家的祖传私房。

   zhè jǐ jiān zhèng​fáng dōu shì tā jiā de zǔ​chuán sī​fáng.

   These main rooms are his family's ancestral private property.

   Source: Dong Chinese Dictionary