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Synonyms

pin down

British  

verb

  1. to force (someone) to make a decision or carry out a promise

  2. to define clearly

    he had a vague suspicion that he couldn't quite pin down

  3. to confine to a place

    the fallen tree pinned him down

"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

pin down Idioms  
  1. Fix or establish clearly, as in The firefighters finally were able to pin down the source of the odor . [Mid-1900s]

  2. Force someone to give precise information or opinions, as in The reporter pinned down the governor on the issue of conservation measures . [c. 1700]


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.

His love of the tape experience stems from a vibe that’s a little hard to pin down.

From Los Angeles Times • Apr. 23, 2026

He is not easily categorized as a political actor, and that ambiguity is precisely what makes him so difficult to pin down — and so easy to amplify.

From Salon • Apr. 6, 2026

Color also proves surprisingly difficult to pin down in words.

From The Wall Street Journal • Mar. 27, 2026

“Palantir’s story used to be hard to pin down: powerful technology, big claims, and a lot of debate,” he added.

From Barron's • Feb. 3, 2026

It’s the type of song that settles in your bones and makes you sad for a reason you can’t quite pin down.

From "Dumplin'" by Julie Murphy