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Substitute

ˈsʌbstɪtjuːt

Substitute definitions
noun
substitute substitutes
  1. a person or thing acting or serving in place of another

    "soya milk is used as a substitute for dairy milk"

    • a person or thing that becomes the object of love or another emotion which is deprived of its natural outlet

      "a father substitute"

  2. a sports player nominated as eligible to replace another after a match has begun

    "Stewart was the Rovers substitute"

  3. a deputy

    "a sheriff substitute"

verb
substitute substituted substitutes substituting
  1. use or add in place of

    "dried rosemary can be substituted for the fresh herb"

    exchange use as a replacement switch
    • act or serve as a substitute

      "I found someone to substitute for me"

    • replace (someone or something) with another

      "customs officers substituted the drugs with another substance"

    • replace (an atom or group in a molecule, especially a hydrogen atom) with another

      "three of the hydrogen atoms of the methane molecule have been substituted by chlorine, bromine or iodine atoms"

  2. replace (a sports player) with a substitute during a match

    "he was substituted eleven minutes from time"