possible world

British

noun

logic (in modal logic) a semantic device formalizing the notion of what the world might have been like. A statement is necessarily true if and only if it is true in every possible world

"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

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possible world

In July, a buoy off the Florida coast reported a hot-tub-like reading of 101.1 degrees Fahrenheit, or more than 38 Celsius, a possible world record for sea surface temperatures.

From Seattle Times ● Aug. 29, 2023

I believe that Ohtani and the Angels are a perfect fit to lead the Angels to a World Series and possible world championship.

From Los Angeles Times ● Jul. 29, 2023

“And it’s a preview of a possible world of chaos and turmoil that none of us would want to live in.”

From New York Times ● Jun. 11, 2022

"It's a preview of a possible world of chaos and turmoil that none of us would want to live in."

From Reuters ● Jun. 11, 2022

ALBUS: Imagine the worst possible world, and then double it.

From "Harry Potter and the Cursed Child" by J.K. Rowling

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023