truly
Americanadverb
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in accordance with fact or truth; truthfully.
Whatever his faults, he lived a life that can be truly said to be significant.
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legitimately; by right.
Those assets and properties are no longer truly his.
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We're truly sorry for the delay.
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to the fullest extent or degree.
The property should be viewed to truly appreciate all it has to offer.
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to a great extent or degree.
The film is littered with some truly dreadful sequences.
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sincerely (a conventional term used at the end of a letter).
Yours truly, Allan Burns.
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exactly; accurately; correctly.
The clock runs truly.
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To truly worship God, we must know Him and not be ignorant of His glorious nature.
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indeed; without doubt; verily.
Truly, she is a fair-haired angel.
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Archaic. faithfully; loyally.
adverb
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in a true, just, or faithful manner
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(intensifier)
a truly great man
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indeed; really
Etymology
Origin of truly
First recorded before 1000; Middle English treuli, Old English trēowlīce; tru(e) + -ly ( def. )
Explanation
Truly is an adverb that means "in truth" or "really." You would say, "That is truly beautiful" or "It was truly a beautiful wedding." When you're truly sick, you're really sick. When you're truly sorry, you're sincerely sorry. A truly odd story is extremely strange or bizarre. A truly scary movie is terrifying. This word has to do with things that are actually or absolutely so. It's also used as a closing in letters. Instead of "Sincerely" or "Sincerely yours," many people write, "Yours truly" or "Very truly yours." The idea is: "I really mean this; you can trust me."
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.
I’d also make sure there was a corporate trustee or a truly trusted friend involved, because I wouldn’t trust my daughter to manage a large inheritance herself.
From MarketWatch ● Aug. 21, 2026
"Preservation like this is truly one in a million," Cole added.
From Science Daily ● Aug. 21, 2026
“You just can’t help being a total noob when you get to a workplace because you lack the only thing that truly matters, which is experience,” Grandy added.
From The Wall Street Journal ● Aug. 20, 2026
And the F-35 jet was promised as “a truly remarkable, capable and affordable multirole fighter” that would be built “on schedule and on cost.”
From Salon ● Aug. 20, 2026
I had been mending a sweater as I told him the story, but I’d had my eyes closed, because only in memory could I truly see.
From "Not Nothing" by Gayle Forman
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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.