sex

pluralsexes

noun: the male or female division of a species, especially as differentiated with reference to the reproductive functions
- The sex of the turtle is difficult to determine until it reaches maturity.
noun: the state of being male or female, typically used with reference to social and cultural differences rather than biological ones
- The company has a policy against discrimination based on sex.
noun: sexual intercourse or activity
- They were discussing safe sex practices in their health class.