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milestone
[ mahyl-stohn ]
/ ˈmaɪlˌstoʊn /
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This shows grade level based on the word's complexity.
noun
a stone functioning as a milepost.
a significant event or stage in the life, progress, development, or the like of a person, nation, etc.: Her getting the job of supervisor was a milestone in her career.
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Which of the following colors is used to symbolize AIR?
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Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use milestone in a sentence
British Dictionary definitions for milestone
milestone
/ (ˈmaɪlˌstəʊn) /
noun
a stone pillar that shows the distance in miles to or from a place
a significant event in life, history, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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