To sing means to make music with your voice by creating notes and melodies. When you sing, you're using your vocal cords to produce pitches that flow together into a tune, whether it's “Happy Birthday,” your favorite pop song, or the national anthem at a baseball game.

Singing is one of the oldest forms of human expression. People have sung for thousands of years to tell stories, celebrate, worship, mourn, and connect with each other. Every culture has its own singing traditions, from opera in Italy to throat singing in Mongolia to gospel music in American churches.

You can sing alone (solo) or with others in a choir or group. Some people sing professionally as musicians, while others sing in the shower, at campfires, or during long car rides. Birds also sing, creating musical calls.

The word can also mean to make a high, ringing sound, like when a tea kettle sings on the stove or wind sings through telephone wires.