lesson
Americannoun
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lessons
plural
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a section into which a course of study is divided, especially a single, continuous session of formal instruction in a subject.
The manual was broken down into 50 lessons.
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a part of a book, an exercise, etc., that is assigned to a student for study.
The lesson for today is on page 22. He worked assiduously at his music lesson.
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something to be learned or studied.
the lessons of the past.
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a useful piece of practical wisdom acquired by experience or study.
That accident certainly taught him a lesson in careful driving.
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something from which a person learns or should learn; an instructive example.
Her faith should serve as a lesson to all of us.
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a reproof or punishment intended to teach one better ways.
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a portion of Scripture or other sacred writing read or appointed to be read at a divine service; lection; pericope.
verb (used with object)
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to teach; instruct; give a lesson to.
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to admonish or reprove.
noun
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a unit, or single period of instruction in a subject; class
an hour-long music lesson
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the content of such a unit
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material assigned for individual study
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something from which useful knowledge or principles can be learned; example
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the principles, knowledge, etc, gained
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a reprimand or punishment intended to correct
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a portion of Scripture appointed to be read at divine service
verb
Other Word Forms
Noun Inflected Forms
Etymology
Origin of lesson
First recorded in 1175–1225; Middle English lesso(u)n, from Old French leçon, from Latin lēctiōn-, stem of lēctiō “a reading”; see lection
Explanation
When a story has something to teach its reader, it has a lesson. The lessons of many folktales range from "always tell the truth" to "be brave" to "find a prince." There are different kinds of lessons, but they're all meant to teach someone how to do something or some new information. In a French lesson, a teacher teaches you the French language, and in a sewing lesson, you'll learn how to make something using fabric and a sewing machine. A typical day at school is one lesson after another. Originally, lesson had two meanings: "something learned by a student" and "a reading aloud from the Bible."
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
It’s an object lesson that fits a broader pattern: For more than a decade now, one man’s flights of fancy have inevitably become the country’s pressing concerns.
From Slate ● Sep. 17, 2026
Parents used it as a summer-holiday maths lesson.
From BBC ● Sep. 16, 2026
That is the real lesson of the week, and it has nothing to do with coins.
From MarketWatch ● Sep. 15, 2026
The lesson of 9/11 wasn’t to live in fear, it was to remain vigilant.
From The Wall Street Journal ● Sep. 13, 2026
I dialed the number Russell had given me and left a message for Irene that I’d be missing our piano lesson that afternoon.
From "The Red Car to Hollywood" by Jennie Liu
The company emphasizes lessons from its experience, including the need to start with the desired business outcome, not a technology.
From The Wall Street Journal ● Sep. 17, 2026
“There are lessons to learn, gaps to close, and changes we must make.”
From Los Angeles Times ● Sep. 15, 2026
"As Minister, I will make sure the department does everything it needs to ensure all lessons are learned."
From BBC ● Sep. 15, 2026
She has undergone similar training several times -- and said the lessons helped her confidence -- but noted she was "so envious of young people who can do all this so easily".
From Barron's ● Sep. 14, 2026
Those kids love her classes, and guitar lessons are important to Luna—and Brie.
From "Keeping Pace" by Laurie Morrison
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
