Definition of Seven Sisters in English:

Seven Sisters

Syllabification: Sev·en Sis·ters
(the Seven Sisters)
1 Astronomy The star cluster of the Pleiades.
2A group of women’s (or formerly women’s) colleges in the eastern US having high academic and social prestige. It includes Barnard, Bryn Mawr, Mount Holyoke, Radcliffe, Smith, Vassar, and Wellesley.

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Word of the day animalcule
Pronunciation: ˌanəˈmalˌkyo͞ol
noun
a microscopic animal