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sub- - definition and synonyms

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prefix     sub- pronunciation in British English
  1. 1
    one small part of a larger thing: used with some nouns
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  2. 2
    smaller or less important than someone or something: used with some nouns

    a sub-post office

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  3. 3
    below or under something: used with some nouns and adjectives

    subaqua diving (=diving under water)

    substandard (=below average)

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    1. a.
      further south: used with some nouns and adjectives

      sub-Saharan Africa

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a lifestyle focussing on simple pleasures such as comfort and cosiness in the home, and spending time with friends and family

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a form of location that involves the underwater detonation of a bomb which causes sound waves that are picked up by ships

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