pronoun · I, me, or my; a self-referential pronoun primarily used in early vernacular literature or traditional Chinese opera

咱家这就去向皇上复命。

pronoun · I, me, or we (often used in early vernacular or by specific roles like eunuchs in historical fiction)

咱家这辈子还没出过远门呢。

pronoun · my home or our house

欢迎以后常来咱家坐坐。