She joined a sorority to find friends and support during college.

Many sororities host philanthropic events each semester to support local charities.

My sororal niece loves to help me in the garden.

At the family reunion, I watched my sororal nephew proudly perform his piano solo.

Every summer, I take my sororal nephews to the science museum so they can explore interactive exhibits.

At the family reunion, I spent the afternoon teaching my sororal nieces how to bake cookies, and they loved it.

In some traditional societies, a sororate marriage is arranged so the husband's family can maintain the alliance after his wife's death.

Anthropologists studying kinship systems often compare sororate marriages across cultures to understand gendered lineage rules.