substance - definition and synonyms


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  1. 1
    [countable] a particular type of liquid, solid, or gas

    The wood is coated with a special substance that protects it from the sun.

    a hazardous/harmful/radioactive substance:

    Some workers had developed cancer after exposure to radioactive substances.

  2. 3
    [uncountable] the quality of being important, real, or useful, or something that shows this quality

    Her comments added substance to the debate.

    The band is all glitz and no substance.

    of substance:

    The agency hasn’t accomplished anything of substance for years.

  3. 4
    [uncountable] the most important ideas or basic meaning of a discussion or a piece of writing

    He refused to discuss the substance of the meetings.

  4. 5
    [uncountable] [usually in negatives or questions] the fact that something is based on accurate information
    substance to:

    There is no substance to his accusations.

    give substance to something (=show that something is true):

    Their appearance together gave substance to the rumours of their imminent marriage.

     Synonyms and related words