plural of sister-in-law

(India) The jungle babbler, Turdoides striata, habitually flocking in extended family groups.

(business) A group of seven oil companies that dominated the global petroleum industry from the mid-1940s to the 1970s.

(chiefly India) plural of cousin sister

plural of half-sister

plural of weak sister

plural of co-sister

plural of big sister

plural of little sister

plural of kid sister