sex

US /seks/
UK /seks/
"sex" picture
1.

either of the two main categories (male and female) into which humans and most other living things are divided on the basis of their reproductive functions.

:
What sex is your baby?
The form asks for your name, age, and sex.
2.

sexual activity, including sexual intercourse.

:
They discussed the importance of safe sex.
The movie contained scenes of explicit sex.
1.

to determine the sex of (an animal).

:
It's difficult to sex young chicks.
The veterinarian will sex the puppies next week.