Word parts

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deep + -ly

Pronunciation

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Adverb

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Positive
deeply

Comparative
more deeply

Superlative
most deeply

  1. If something is deeply rooted, felt, held, etc., it is done to a deep extent or degree.
    I am deeply concerned about this matter.
    I deeply regret my behaviour.
    The surface of the planet was deeply cratered.
  2. If something moves deeply it moves to or at depth.
    In this part of the river salmon swim deeply.