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    back up

    back up - Dictionary definition and meaning for word back up

    Definition
    (verb) give moral or psychological support, aid, or courage to
    Synonyms : support
    Example Sentence
    • She supported him during the illness
    • Her children always backed her up
    Definition
    (verb) move backwards from a certain position
    Synonyms : back down , back off
    Example Sentence
    • The bully had to back down
    Definition
    (verb) establish as valid or genuine
    Synonyms : back
    Example Sentence
    • Can you back up your claims?
    Definition
    (verb) make a copy of (a computer file) especially for storage in another place as a security copy
    Example Sentence
    • You'd better back up these files!
    Definition
    (verb) become or cause to become obstructed
    Synonyms : choke , choke off , clog , clog up , congest , foul
    Example Sentence
    • The leaves clog our drains in the Fall
    • The water pipe is backed up
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