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Definitions

lesson

[les-uhn] / ˈlɛs ən /
NOUN
information taught
Synonyms
STRONGEST
class education exercise homework instruction lecture practice reading study task teaching test
STRONG
assignment coaching drill period quiz recitation schooling
WEAK
chalk talk tutoring
Antonyms
STRONGEST
ignorance
NOUN
helpful example, communication
Synonyms
STRONGEST
message warning
STRONG
admonition censure chiding deterrent exemplar model moral notice precept punishment rebuke reprimand reproof scolding
WEAK
helpful word noble action
Antonyms
STRONG
compliment encouragement praise reward

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.

Understanding what this means can teach people an important lesson about investing.

From MarketWatch • Apr. 14, 2026

Butera didn’t necessarily feel ready for that assignment at the time, but it taught him a valuable lesson.

From The Wall Street Journal • Apr. 14, 2026

In fact, they lodged so firmly that I could use a lesson or two in not trying so hard.

From Salon • Apr. 13, 2026

“Spring has been a great learning lesson for me.”

From Los Angeles Times • Apr. 11, 2026

“It has to be a lesson of resiliency,” Crisafulli said.

From "Mountain of Fire" by Rebecca E. F. Barone