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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.

Color also proves surprisingly difficult to pin down in words.

From The Wall Street Journal

In the film a doctor explains that there are times when physicians aren’t able to pin down a diagnosis or there are multiple diagnoses.

From Los Angeles Times

In the fog of war, precise data is scarce and the battlefield is shifting too fast for investors to pin down a reliable damage assessment.

From The Wall Street Journal

He was still talking to me in a pleasant tone of voice, but my hands were pinned down by my sides.

From Literature

Coppola, “who changed quite a bit, was the hardest one for me to pin down,” Fischer said.

From Los Angeles Times