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:
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
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
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
Mr Husband said for many younger Scotland fans the tournament would "enlighten" their lives and the team would have to set their standards high.
From BBC ● Oct. 16, 2023
The sun that lay on Lothlórien had no power to enlighten the shadow of that distant height.
From "The Fellowship of the Ring" by J.R.R. Tolkien
Unfortunately, however, the Netflix series obscures on this issue more than it enlightens.
From Slate ● Apr. 30, 2025
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
Patrick Carone, a former editor at Abercrombie’s quarterly magazine, enlightens viewers on the concept of a mall: “Imagine, like, a search engine that you could walk through.”
From New York Times ● Apr. 18, 2022
This is why “Catch the Fair One” ultimately disappoints more than it enlightens.
From Los Angeles Times ● Feb. 11, 2022
“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
“Are our moneyed men less enlightened to their own interest, or less enterprising in the pursuit?,” the future Treasury secretary wrote External link in 1780.
From Barron's ● Jun. 17, 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
Many of the problems we face are self-inflicted, and they are fixable with proper allocation of resources, and enlightened and accountable leadership.
From MarketWatch ● Mar. 10, 2026
Yes, the founders, for men of their era, were enlightened.
From Salon ● Mar. 8, 2026
Our strategy was not to argue with him in the field, but to contest the charges in court where we would have a chance to make our case before slightly more enlightened officers.
From "Long Walk to Freedom" by Nelson Mandela
"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
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
When it comes to a familiar figure, the museum “stakes out enlightening new ground,” according to our critic.
From The Wall Street Journal ● May 10, 2026
With six politicians vying for your attention, these debates can be noisy and argumentative, but they can also be enlightening and influential.
From BBC ● Apr. 28, 2026
During his voyage around the world, his encounters with natives had been startling and enlightening.
From "Charles and Emma: The Darwins' Leap of Faith" by Deborah Heiligman
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.
