Physical or physiological differences between males and females. Social or cultural distinctions associated with being male or female. Bodies are socially produced to be masculine or feminine. The binaries are not stable or equal in power. They require borderwork (social sanctions that ensure that these gender ideals seem natural, universal and timeless) Reinforces that gender is socially produced and not biologically inherent. Bodies are born in 2 types: male and female. Bodies are attracted to opposite type bodies. The only sensible thing is gender aligment. We learn about how concrete the ideas about gender are. Infantilizing women: to make an adult appear as if they are child like. The advantage of men as a group from maintaining an unequal gender order". Historically and culturally changing normative ideal and practices of masculinities that perpetuates and reinforces power over women. Internal hegemony: power over; subordination of some men- this is done to maintain subordination of women.