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deepen

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verb deepen pronunciation in American English /ˈdipən/ 
Word Forms
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present tense
I/you/we/theydeepen
he/she/itdeepens
present participledeepening
past tensedeepened
past participledeepened
  1. 1
    [intransitive] if a bad situation deepens, it becomes worse

    The economic crisis has deepened.

    a deepening conflict between the political rivals

    Synonyms and related words for this sense of deepen
  2. 2
    [intransitive/transitive] if a feeling or relationship deepens, or if something deepens it, it becomes stronger

    His anxiety deepened when he heard the news.

    Both sides are now deepening their commitment to the peace process.

    Synonyms and related words for this sense of deepen
  3. 3
    [intransitive/transitive] if someone's knowledge or understanding deepens, or if something deepens it, they know or understand more

    I'm trying to deepen my understanding of local history.

  4. 4
    [intransitive/transitive] if water deepens, or if someone deepens it, it becomes deeper

    plans to deepen channels in the Port of New York

    Synonyms and related words for this sense of deepen
  5. 5
    [intransitive] if a color deepens, it becomes darker

    As evening arrived, the shadows deepened.

    Synonyms and related words for this sense of deepen
  6. 6
    [intransitive/transitive] if a sound deepens, or if someone deepens it, it becomes lower

    The man suddenly deepened his voice.

    Synonyms and related words for this sense of deepen

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