high·​ly | \ ˈhī-lē How to pronounce highly (audio) \

Definition of highly

1 : in or to a high place, level, or rank
2 : in or to a high degree or amount
3 : with approval : favorably

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Examples of highly in a Sentence

She is one of the most highly respected journalists in the country. though she didn't win, she was highly satisfied with her personal results for the marathon
Recent Examples on the Web So far, vaccines are highly effective against the variants prevalent in the United States. al, "More contagious UK variant of COVID-19 becoming dominant in Alabama," 7 Apr. 2021 Plus, research has shown the existing vaccines to be highly effective in combating the disease — including its most dangerous variants. Alex Putterman, courant.com, "Doom or hope? With COVID-19 vaccinations and cases both going up in Connecticut, the message can be muddled," 6 Apr. 2021 Vaccine specialist Novavax also appears to have a highly effective shot based on U.K. trials and is looking to produce about two billion doses annually. Trefis Team, Forbes, "New Developments For Covid-19 Shot Bode Well For Pfizer Stock," 6 Apr. 2021 The Army has developed a COVID-19 vaccine that could be highly effective against coronavirus variants. David Hogberg, Washington Examiner, "Army begins testing vaccine that may be more effective against coronavirus variants," 6 Apr. 2021 Russians could use another COVID-19 vaccine to supplement Sputnik V, which despite initial uncertainties appears to be highly effective and has been authorized for use in nearly 60 countries. Olga Dobrovidova, Science | AAAS, "Russia’s COVID-19 defense may depend on mystery vaccine from former bioweapons lab—but does it work?," 6 Apr. 2021 Fine mesh is highly effective at removing even the smallest particles. Erica Van Blommestein, chicagotribune.com, "The best chinois strainer," 5 Apr. 2021 Pfizer and BioNTech's highly effective COVID vaccine is of the mRNA variety, as is Moderna's. Sy Mukherjee, Fortune, "Why your wait time between COVID vaccine doses may be different than your neighbor’s," 3 Apr. 2021 The foreign agent law has proved to be a highly effective tool by authorities to harass and fragment Russia’s pro-democracy activists and others — just one part of a sweeping crackdown on Kremlin critics under Russian President Vladimir Putin. Washington Post, "Russia’s ‘foreign agent’ law now threatens rights group that survived even Soviet pressures," 3 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'highly.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of highly

before the 12th century, in the meaning defined at sense 1

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Time Traveler for highly

Time Traveler

The first known use of highly was before the 12th century

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Statistics for highly

Last Updated

10 Apr 2021

Cite this Entry

“Highly.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/highly. Accessed 21 Apr. 2021.

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More Definitions for highly



English Language Learners Definition of highly

: to a great degree
: in an amount or number that is greater than usual : to a high degree
: in an approving way : with approval


high·​ly | \ ˈhī-lē How to pronounce highly (audio) \

Kids Definition of highly

1 : to a high degree : very much He's a highly respected citizen.
2 : with much approval Teachers think highly of her.

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