Solutions Bro. or sis. has 24 entries with similar clues
- broSis's sib
- nunSister
- auntMom's sister
- nunsSisters in order
- geneFilm critic Siskel
- nieceSister's girl
- eratoSister of Thalia
- auntsDads' sisters
- nephewSister's son
- niecesYour sister's daughters
- serenavenus williams' sister
- siblingBrother or sister
- sororalLike sister
- rose-redSnow White's lesser-known sister
- siblingsYour brothers and sisters
- sororitySisterhood
- conundrumProblem with sister getting in fake spirit
- camouflageGreen and brown on a green-and-brown background, say
- sororicideMurder of one's sister
- fratricideKiller of one's brother or sister
- staff-nurseNHS sister's junior
- michelangeloPainter who painted the ceiling of the Sistine Chapel in Rome
- relativepronoun… maybe dad in favour of sister taking over that?
- brothers-in-lawthese married sisters