Meaning & use
sex
The biological classification of an organism as male or female based on reproductive characteristics.
See it in a sentence
The form asked applicants to state their sex, age, and nationality.
Doctors can often determine the sex of a baby before birth through an ultrasound.
A note on using this word
Sex refers to biological classification, while gender often refers to social and cultural roles; the two are related but not identical.
Words with a similar meaning
This term is best learned through its definition and examples.
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Another way to use it
2. noun
Physical activity between people involving sexual intercourse or intimacy.
The book discusses relationships, sex, and communication between partners.
Make it your own
Write a sentence using “sex”, then compare your use with the examples above.