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English definition of “petition”

petition

noun [C] uk   /pəˈtɪʃ.ən/ us  
a document signed by a large number of people demanding or asking for some action from the government or another authority: I signed a petition against the proposed closure of the local hospital today. specialized law a formal letter to a law court asking for a particular legal action: She's filing a petition for divorce.

petition

verb [I or T] uk   /pəˈtɪʃ.ən/ us  
also specialized law to make a formal request for something, especially in a law court: They're petitioning for/about better facilities for disabled people on public transport. [+ obj + to infinitive ] I think we should petition the government to increase the grant for the project. She is petitioning for a re-trial.
(Definition of petition from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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