S₁I₁S₁T₁E₁R₁

6 points

SISTER is validvalid

to treat like a female sibling [v SISTERED, SISTERING, SISTERS]

28,125 of 196,601 in NWL2023·also valid in CSW24

to treat like a female sibling [v -ED, -ING, -S]

223,821 of 280,887 in CSW24·also valid in NWL2023