- A woman who is simultaneously sister and wife to her husband:
- 1743, trans. Philip Francis, “Odes”, in Horace, volume III, iii, page 64:
- My Grecians shall victorious prove, By me led on to War, the Sister-Wife of Jove.
- 1853, Henry N. Humphreys, The coin collector's manual, page 118:
- Ptolemy VII married Cleopatra the sister-wife of his predecessor.
- In a polygamous marriage, a woman who is simultaneously the sister and co-wife of another.
- 1853, quoted in Robert Cox, Sabbath Laws and Sabbath Duties, page 194:
- Enmities between sister-wives will [be,] from their having known each other too intimately all their lives, more unmannerly than where they are strangers to each other
- A co-wife in general.
- 2008, Miriam Koktvedgaard Zeitzen, Polygamy: A Cross-Cultural Analysis, page 97:
- The concept of 'sisterhood' was popularly applied to the official organizations for Mormon women, and Mormon co-wives were and are still known as 'sister-wives'
- 2006, Xiaoxiaosheng, trans. David Tod Roy, The plum in the golden vase, or, Chin P'ing Mei, page 21:
- Yüeh-niang and her sister-wives, all dressed in formal gowns, came out from inside to greet them and ushered them into the rear reception hall