[oh-puh n-uh n-shuht]


immediately obvious upon consideration; easily decided: an open-and-shut case of murder.

Origin of open-and-shut

An Americanism dating back to 1835–45 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for open-and-shut

Historical Examples of open-and-shut

  • Marrying with me in this case is an open-and-shut business proposition.

    Dixie Hart

    Will N. Harben

  • But McNeill's could not afford to be shown up before thirty interested rivermen as running an open-and-shut brace-game.

    The Riverman

    Stewart Edward White

  • But it had been all over in a breath, just an open-and-shut piece of battiness, same as fellers have when they jump a bridge.

    Shorty McCabe

    Sewell Ford

  • And sometimes the open-and-shut of the steam hog had to go pfisty-pfoost, pfisty-pfoost.

    Rootabaga Stories

    Carl Sandburg

  • I'm not suspecting anything, mind, but this has got to be an open-and-shut deal, or I don't go in.

    The Boy With the U.S. Miners

    Francis Rolt-Wheeler

British Dictionary definitions for open-and-shut



easily decided or solved; obviousan open-and-shut case
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