Definition of highly in English:

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Pronunciation: /ˈhīlē/


1To a high degree or level: [as submodifier]: a highly dangerous substance highly paid people a highly placed official
More example sentences
  • Even exposure to relatively low levels of this highly poisonous gas can cause brain damage or death.
  • On one side the tiles are broken and the steps into the pool are loose and highly dangerous.
  • She said she did not blame the driver, but felt the junction was highly dangerous.
very, extremely, exceedingly, particularly, most, really, thoroughly, decidedly, distinctly, exceptionally, immensely, greatly, inordinately, singularly, extraordinarily
informal awfully, terribly, majorly, seriously, supremely, desperately, hugely, ultra, oh-so, damn, damned
dated frightfully
1.1Favorably: he was highly regarded by his colleagues
More example sentences
  • He is very popular with his colleagues and highly regarded by senior officers.
  • It is true he polarises people, but where I am from he is highly regarded by the community.
  • He's a screenwriter and apparently is very highly regarded in the industry.


Old English hēalīce (see high, -ly1).

For editors and proofreaders

Syllabification: high·ly

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