Lesson
* Meaning: A period of instruction or learning, often in a school or educational setting. It can also refer to a piece of advice or experience that teaches something important.
* Example:
* "I learned a valuable lesson about honesty in that situation."
* "The teacher gave us a lesson on fractions."
Lessen
* Meaning: To make something smaller or less in amount, degree, or intensity.
* Example:
* "The doctor prescribed medication to lessen the pain."
* "They worked to lessen the impact of the storm on the coast."
Key Differences:
* Part of speech: "Lesson" is a noun, while "lessen" is a verb.
* Meaning: "Lesson" refers to learning, while "lessen" means to reduce or decrease.
* Usage: "Lesson" is used to describe a teaching experience, while "lessen" is used to describe a reduction in something.
Remember: "Lesson" and "lessen" are not interchangeable. They have distinct meanings and serve different grammatical functions in a sentence.