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:
When you get a varied body of work, it can enlighten your own life in a way, and that’s a great feeling.
From The Wall Street Journal ● Jan. 17, 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
“The truth is, you are either here to enlighten or discourage.”
From Los Angeles Times ● Feb. 7, 2025
Because I break bread with and claim to be part of this marked construct, this otherness, complete with jail time within the carceral state, allow me to enlighten you.
From Salon ● Jan. 1, 2024
Looks seem rather important, as does the ability to enlighten, disappoint, and control great numbers of people who always seem to be American.
From "Me Talk Pretty One Day" by David Sedaris
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
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
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
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
The author ties his root-and-branch critique of capitalism to a plea to “make modern life much more affordable than it is at present,” which he hopes will open more opportunities for enlightened leisure.
From The Wall Street Journal ● Jun. 2, 2026
You might be tempted, with every faraway look in Christian Petzold’s subtly moving “Miroirs No. 3,” to hope for that soothing, enlightened release so often served as catharsis in tales of loss and healing.
From Los Angeles Times ● Mar. 19, 2026
Another storm enlightened Jura with faint flashes; and another darkened and sometimes disclosed the Môle, a peaked mountain to the east of the lake.
From "Frankenstein" by Mary Shelley
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
But the Glass year is already officially underway with two curiously enlightening projects this month.
From Los Angeles Times ● May 21, 2026
“Isn’t there anything else more enlightening we could watch? Is there anything on PBS? Any documentaries?”
From "I Am Not Your Perfect Mexican Daughter" by Erika L. Sánchez
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.
