petition - definition and synonyms

noun [countable] 

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  1. 1
    a document signed by many people that asks someone in authority to do something
    petition against:

    More than 300 villagers have signed a petition against the building project.

  2. 2
    legal an official document in which you ask a court to take legal action
    petition for:

    a petition for divorce

    file a petition:

    Her lawyer has already filed a petition for her immediate release from prison.

  3. 3
    formal a request made to God or to someone such as a king