day-one

day one

noun
(often initial capital letters) the very first day or beginning of something.

Origin:
1975–80

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Slang Dictionary

day one definition


  1. n.
    the first day. (Often with since.) : You haven't done anything right since day one! You're fired!
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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00:10
Day-one is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
the offspring of a zebra and a donkey.
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