 This meaning of "gender" is now prevalent in the social sciences, although in many other contexts, "gender" includes "sex" or replaces it.Gender was first only used in languages to describe the feminine and masculine words, up until around the 1960s.Since the social sciences now distinguish between biologically defined "sex" and socially constructed "gender", the term "gender" is now also sometimes used by linguists to refer to social gender as well as grammatical gender.