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substitute

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verb substitute pronunciation in American English /ˈsʌbstɪˌtut/ 
Word Forms
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present tense
I/you/we/theysubstitute
he/she/itsubstitutes
present participlesubstituting
past tensesubstituted
past participlesubstituted
  1. 1
    [transitive] to use something new or different instead of what is normally used

    Instead of using silicon, they have substituted a more flexible material.

    substitute something for something:

    You can substitute chicken for beef if you don't like red meat.

    The objective is to substitute real democratic politics for conflict and violence.

    Synonyms and related words for this sense of substitute
  2. 2
    [transitive] to remove one thing and put something else in its place

    She suggested that we take out the word "demand" and substitute "request."

    substitute something for something:

    Police investigators substituted Palmer's bag for a similar one, then followed him to his hideout.

    substitute something with something:

    Owing to the high insurance costs, the original painting has been substituted with a copy.

    Synonyms and related words for this sense of substitute
  3. 3
    [intransitive] to do someone else's job for a short period of time
    substitute for:

    Mark will substitute for me tomorrow.

derived word

substitutable

adjective

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