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:
He chalked it up as “tuition” for a lesson on making sure he’s on the airline’s actual website going forward.
From The Wall Street Journal ● Sep. 11, 2026
Nettles folded a 9/11 lesson into a unit on the Columbian Exchange — the trade of plants, animals, culture and disease that began after Christopher Columbus’ 1492 voyage.
From Los Angeles Times ● Sep. 11, 2026
Sister Schubert’s learned the harder lesson: once invented, we would prefer that you not take it away.
From Salon ● Sep. 7, 2026
The findings reinforce a broader lesson emerging from research on alternative sweeteners.
From Science Daily ● Sep. 6, 2026
But Master Gogolev was too distracted by his own troubles to give a lesson on Hamlet.
From "The Long-Lost Home" by Maryrose Wood
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And inside their homes, parents find ways to impart their own lessons, translating trauma into family history.
From Los Angeles Times ● Sep. 11, 2026
"This makes it different from other protests, so we need to make sure we are learning lessons."
From BBC ● Sep. 10, 2026
Yet the investor who was an early partner at Citadel continually draws on lessons from his second undergraduate major: anthropology.
From The Wall Street Journal ● Sep. 10, 2026
First, another word from Justin: “The lessons I learned around system fluency, decisions and leadership have become even more amplified in the age of AI,” he wrote in a LinkedIn post.
From The Wall Street Journal ● Sep. 9, 2026
“I wish I’d gone to swimming lessons instead of writing stories about fish!”
From "Nim’s Island" by Wendy Orr
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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.