(literary) the five branches of a lineage under the ancient clan system, comprising the descendants of the founding ancestor along with those of the great-great-grandfather, great-grandfather, grandfather, and father

(literary) relatives within the five degrees of mourning, specifically referring to the five generations from one's great-great-grandfather down to oneself

(literary) children born of the same father but five different mothers; refers specifically to the children of Emperor Jing of Han as recorded in the 史记 shǐ​jì