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1. Moving by; going past: The child waved to the passing cars.
2. Of brief duration; transitory: a passing fancy.
3. Cursory or superficial; casual: a passing glance.
4. Allowing one to pass a test, course of study, inspection, or examination; satisfactory: a passing grade.
5. Archaic Extreme or great; surpassing: "'Tis a passing shame" (Shakespeare).
Very; surpassingly: "I will mention only one particular aspect of the current mess because ... this one is surely something new and passing strange" (Walker Percy).
1. The act of one that passes or the fact of having passed: the passing of another summer.
2. A place where or a means by which one can pass.
While going by; incidentally.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
in passing; in a passing manner
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014