stumble across/on/onto/upon

idiom

Definition of stumble across/on/onto/upon

: to find or learn about (something) unexpectedly I stumbled across/on/upon this book by chance. We stumbled onto/across the ruins of an old fort. They stumbled on/upon a bizarre plot. He stumbled onto the truth.

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“Stumble across/on/onto/upon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stumble%20across%2Fon%2Fonto%2Fupon. Accessed 19 Jan. 2021.

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