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.
Highly educated mothers also enjoy an income-compounding effect over their peers.
From The Wall Street Journal • Apr. 16, 2026
Highly regarded as an investor, Combs, a boyish-looking 55, helped return Geico, which was burdened with outdated technology and bloated costs, to profitability.
From Barron's • Mar. 27, 2026
Highly trained forces moved with him wherever he traveled, according to people familiar with his operations.
From Los Angeles Times • Feb. 24, 2026
Highly Sprung supported Coventry City of Culture's bid and delivered CastAway, an aerial performance that explored the impact of waste on the environment.
From BBC • Jan. 18, 2026
Highly unlikely, I realize, but perhaps worth a shot.
From "I Am the Messenger" by Markus Zusak
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.
