older sister and younger brother
sister-in-law (spouse's older sister or older brother's wife); older stepsister; older adopted sister; non-blood-related older sister
older brother and older sister
older half-sister (by a different mother)
eldest sister; oldest sister
Sister (i.e. a nun; sometimes used as a posthumous suffix)
one's next oldest sister; second elder sister
older half-sister (by a different father)
you (feminine plural); you ladies
sisters of the same mother; uterine sisters