The milk sisters met every summer to celebrate the bond formed by being breastfed by the same woman.

Although they were not related by blood, the milk-sisters shared a bond stronger than many families.

He used the phrase scissor sister in the article without realizing it's vulgar slang for a lesbian.

The sisters-german visited the art museum together on a rainy afternoon.

When I was sick last month, my sister-german stayed home to take care of me.

My sisters in law surprised me with a homemade quilt for my birthday.

After they realized they were Eskimo sisters, they awkwardly laughed and compared stories over coffee.

At the convent, the Sisters Minor lead the evening prayers with humility and joy.

The Sisters Minoress walked quietly through the cloister, carrying baskets of herbs for the infirmary.

The sisters minoress gathered in the chapel to pray for the village's safety.