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deepen

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verb British English pronunciation: deepen /ˈdiːpən/ 
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

  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.

  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. 5
    [intransitive/transitive] if water deepens, or if someone deepens it, it becomes deeper

    plans to deepen channels in the Port of Southampton

  5. 6
    [intransitive] if a colour deepens, it becomes darker

    As evening arrived, the shadows deepened.

  6. 7
    [intransitive/transitive] if a sound deepens, or if someone deepens it, it becomes lower

    The man suddenly deepened his voice.

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