sisterhood

Short definition from Wiktionary

Noun

1. 1
   The state, or kinship of being sisters.
2. 2
   The quality of being sisterly; sisterly companionship; especially, the sense that women have of being in solidarity with one another.
3. 3
   A religious society of women.
4. 4
   The idea of universal experience amongst women, regardless of other traits or factors. (Considered obsolete in third-wave feminism.)