认亲

rènqīn

(1) [(of newly-weds' families) visit each other for the first time after marriage]∶旧时结婚后男女双方的家属初相访问, 叫作"认亲"

(2) [recognize sb.as one's relatives]∶泛指认亲戚

我跟他不是一家, 假如要认亲, 他还得比我晚两辈呢