enlighten
Americanverb (used with object)
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enlightens,
present (3rd person singular)
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enlightened,
past participle, past
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enlightening
present participle
verb
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to give information or understanding to; instruct; edify
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to free from ignorance, prejudice, or superstition
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to give spiritual or religious revelation to
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poetic to shed light on
Other Word Forms
Derived Forms
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enlightenednessnoun
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enlightenernoun
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preenlightenernoun
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preenlightenverb (used with object)
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reenlightenverb (used with object)
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enlighteningadjective
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nonenlightenedadjective
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unenlightenedadjective
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well-enlightenedadjective
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enlightenedlyadverb
Inflected Forms
Participles
Conjugated Forms
Present
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enlightensimple
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enlightenssimple
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have enlightenedperfect
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has enlightenedperfect
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am enlighteningprogressive
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are enlighteningprogressive
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is enlighteningprogressive
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have been enlighteningperfect progressive
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has been enlighteningperfect progressive
Past
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enlightenedsimple
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had enlightenedperfect
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was enlighteningprogressive
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were enlighteningprogressive
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had been enlighteningperfect progressive
Future
Etymology
Origin of enlighten
First recorded in 1350–1400; Middle English enli(g)htenen; see en- 1, lighten 1
Explanation
To enlighten someone means to explain something clearly to him. If your friend is behaving strangely but insists she has a reason for it, you could ask her to enlighten you. Enlighten comes from the metaphor that ignorance is a state of being "in the dark," and that knowledge is illuminating. We use enlighten as a verb meaning to clear up, to remove confusion. Light is also a powerful metaphor for spiritual insight. If you have a great revelation about the divinity of the world, you could say you have been enlightened. The era known as the "Age of Reason" is also called the Enlightenment.
Vocabulary lists containing enlighten
"The Odyssey" by Homer, Books 14–18
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Ronald Reagan, "Tear Down This Wall" (1987)
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The Titan's Curse
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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:
A director who loves our country and wants to enlighten us with consequential historical exhibits would be a better fit.
From The Wall Street Journal ● Aug. 4, 2026
So can you enlighten us as to the great wisdom Justices Clarence Thomas and Samuel Alito share in their own concurrences?
From Slate ● Jun. 18, 2025
"I think in the spirit of the bikers, Dave would want me to continue to have fun and to educate, to inform, to enlighten, to be slightly edgy," he says.
From BBC ● Dec. 6, 2024
And I’ll just pray to the gods of the arts to enlighten me.
From Los Angeles Times ● Nov. 22, 2024
The next two trips to the conference room passed without incident, but the interviews continued to enlighten me.
From "Newjack: Guarding Sing Sing" by Ted Conover
He thought about the country’s anger, prejudice and the way the news batters more than enlightens.
From Los Angeles Times ● Oct. 18, 2023
There's not a lot of focus on music that enlightens people, and that carries over to other products as well.
From Salon ● Jun. 17, 2023
Poverty casts a dark shadow, while love enlightens the ambience.
From Seattle Times ● Nov. 27, 2019
Must-see TV: When They See Us, Ava DuVernay’s miniseries about the lives at the heart of the Central Park Five, informs and enlightens audiences—but as Willa Paskin reviews, entertainment is not its core purpose.
From Slate ● May 30, 2019
“You are like he was,” Keith enlightens me, “and just like him, you were most likely to die the same way—a quarter of what you could have been....”
From "I Am the Messenger" by Markus Zusak
It also revealed that I’ve been fibbing to myself: Much as I consider myself enlightened, being unmanly in an era that worships machismo does bug me a little.
From The Wall Street Journal ● Sep. 12, 2026
Long have well-meaning, enlightened Westerners assumed that the liberal values regnant in their democracies would arrest any attempt to revive antisemitism.
From The Wall Street Journal ● Aug. 5, 2026
You know, if everybody has the same idea and the same belief, we’re never going to learn anything, we’re never going to be enlightened to anything beyond ourselves.
From Los Angeles Times ● Jul. 2, 2026
He’s on the board of the Museum of Modern Art in New York and received its David Rockefeller Award, given to an “individual from the business community who exemplifies enlightened generosity.”
From Barron's ● Jun. 18, 2026
Victor III was far more enlightened, but his liberalism was paternalistic, rooted in noblesse oblige.
From "The Best of Enemies" by Osha Gray Davidson
Yes, a book about the history of the bond market can be entertaining and enlightening.
From The Wall Street Journal ● Jul. 14, 2026
Nevertheless, it’s an enlightening read in light of how dramatically war has changed in the last two-and-a-half centuries.
From Salon ● Jul. 4, 2026
"Together, these records offer a more complex and enlightening account of the Revolution, showing how its consequences were felt far beyond the Thirteen Colonies," Cunningham added.
From Barron's ● Jun. 22, 2026
But the Glass year is already officially underway with two curiously enlightening projects this month.
From Los Angeles Times ● May 21, 2026
“Let’s just say it’s been an enlightening few days,” I reply.
From "Split the Sky" by Marie Arnold
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.
