highly
Americanadverb
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in or to a high degree; extremely.
highly amusing; highly seasoned food.
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with high appreciation or praise; admiringly.
to speak highly of a person.
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more than adequately; generously.
a highly paid consultant.
adverb
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(intensifier)
highly pleased
highly disappointed
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with great approbation or favour
we spoke highly of it
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in a high position
placed highly in class
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at or for a high price or cost
Etymology
Origin of highly
First recorded before 900; Middle English heihliche, Old English hēalīce; equivalent to high + -ly
Explanation
Highly means to a high degree, extremely. A highly dangerous substance is one to stay far away from. If you think very highly of yourself, you give yourself the thumbs up every time you walk by a mirror. Highly comes from the Old English word healice for basically, "honorably," but has also come to mean “very very.” A highly respected writer is one people look up to. A highly regarded politician will probably win an election. Highly also refers to anything that is intense or extreme. A highly flammable chemical can burst into flames easily. The -ly ending is highly common for an adverb.
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.
In May, the UK's terror threat was raised to "severe", meaning an attack is highly likely.
From BBC ● Aug. 21, 2026
At least hyperscalers have highly profitable business models and strong balance sheets; many of these new power providers don’t.
From The Wall Street Journal ● Aug. 20, 2026
Players are held to high standards as role models, and their off-field behaviour is as highly scrutinised as their on-field antics.
From Barron's ● Aug. 20, 2026
It’s still pastiche, but unbeholden to the nostalgia-obsessed, highly referential style that has plagued so much contemporary media, like “Stranger Things,” “Super 8” and “Wonder Woman 1984.”
From Salon ● Aug. 20, 2026
Once aboard, he secured a window seat so he could continue to wave many highly theatrical farewells to Penelope and the children.
From "The Unseen Guest" by Maryrose Wood
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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.