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adjective extensive pronunciation in American English /ɪkˈstensɪv/
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  1. 1
    very large in amount or degree
    The accident caused extensive damage to both cars.
    the restaurant’s extensive wine list
  2. 2
    involving a lot of details and information
    She has an extensive knowledge of art history.
    Scientists have conducted extensive research into the causes of cancer.
  3. 3
    spreading over a large area
    the hotel’s extensive grounds
    He suffered a broken wrist and extensive bruising.
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extensively

 extensive pronunciation in American English adverb
The building was extensively damaged by fire.

extensiveness

noun [uncountable]
Synonyms and related words

nanodegree

a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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hypocaust

an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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