third lesson

noun
UK /ˌθɜːd ˈlesən/
US /ˌθɝːd ˈlesən/

The third lesson is the class that comes after the first two.

Our third lesson today is music, and we get to sing.


OTHER MEANINGS

2. The third part of a book or course that teaches something step by step.

In the third lesson of the piano book, you learn to play with both hands.

3. A talk or teaching given to teach a moral or skill for the third time in a series.

The coach gave the team a third lesson on passing the ball.

4. The third unit in a series of online videos or exercises.

After finishing the third lesson, she earned a badge on the app.