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Synonyms

run across

British  

verb

  1. (intr, preposition) to meet unexpectedly; encounter by chance

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

run across Idioms  
  1. see come across, def. 1.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

AI is also fundamentally changing how some advertisers create the ads that run across Meta-owned sites.

From The Wall Street Journal • Apr. 13, 2026

If you run across a professional athlete, pose for a photo standing right next to him, beta-smiling in admiration, and post it on social media.

From The Wall Street Journal • Apr. 5, 2026

"It was a nice way to get out and move, and 18 months later I became the first type 1 diabetic to run across the UK," he says.

From BBC • Jan. 18, 2026

Cause and effect run across many scales at once, from ion channels to dendrites to circuits to whole-brain dynamics, and these levels do not behave like independent modules stacked in layers.

From Science Daily • Dec. 24, 2025

I see her run across the cobbles to the door.

From "The Astonishing Life of Octavian Nothing, Traitor to the Nation, Volume II: The Kingdom on the Waves" by M.T. Anderson

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