run its course

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run its course (third-person singular simple present runs its course, present participle running its course, simple past ran its course, past participle run its course)

1. To come to a natural end.

   Synonym: take its course

• “run its course”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “run its course”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “run its course” in Longman Dictionary of Contemporary English, Longman.