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person-day

American  
[pur-suhn-dey] / ˈpɜr sənˌdeɪ /

noun

  1. a unit of measurement, especially in accountancy, based on an ideal amount of work done by one person in one working day.

Etymology

Origin of person-day

First recorded in 1965–70

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.