enlighten
Americanverb (used with object)
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:
Some of those eagerly sought to enlighten their charges, while a few others grew to see – or claimed to see – an unbridgeable chasm between the ivory tower and mass cultural aspiration.
From Salon ● Apr. 19, 2026
Its narrative offers few character sketches, jumps around in time and digresses into subjects that distract more than they enlighten.
From The Wall Street Journal ● Apr. 3, 2026
I can give Bill something that people don’t understand and progress the story and maybe enlighten people.
From Los Angeles Times ● Jan. 28, 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
“You have no idea what is happening, Perseus Jackson. I will let the General enlighten you. You are going to do him a great service tonight. He is looking forward to meeting you.”
From "The Titan's Curse" by Rick Riordan
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
This is her place to retreat inward with her sheep to create prose that enlightens us and products that feed us.
From Seattle Times ● Jun. 16, 2023
The deeply felt elegance of Dandridge’s rendition of “Send in the Clowns” enlightens, even if belatedly, Hayden’s Fredrik, who grows in gravitas and, therefore, appeal.
From Los Angeles Times ● May 2, 2023
But it thrives as an autonomous sphere, and as I age, it’s increasingly the one that succors, enlarges, and enlightens me most, when I have the energy and presence to bring to it.
From Slate ● Dec. 20, 2019
I will read further, searching until I find an explanation that enlightens me.
From "Ophelia" by Lisa Klein
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
Quite poorly educated, quite easily misled, perhaps less than enlightened.
From Salon ● Jun. 15, 2026
Being a deeply enlightened and attuned individual, she offers up her age before I can ask: 53.
From The Wall Street Journal ● Jun. 9, 2026
“So something more compelling than a badger will create a more enlightened student body. Got it.”
From "Here to Stay" by Sara Farizan
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
Alexander said: "It was the single most enlightening conversation I've had in the last month on trade so I see why you hold him in such high regard."
From BBC ● Jun. 3, 2026
Grammy-winning pianist Robert Glasper’s live performance from 2010 is particularly enlightening: the audience becomes audibly excited the moment they recognize the song’s iconic piano hook, a scene that demonstrates “Sunshine’s” immortality.
From Los Angeles Times ● May 19, 2026
"Intelligence is essentially a banal trade of sifting through huge amounts of random information in a search for a single enlightening gem or illuminating link," he wrote.
From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau
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.
