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Showing results for quintile. Search instead for quintiles.

quintile

American  
[kwin-til, -tahyl] / ˈkwɪn tɪl, -taɪl /

noun

  1. Statistics. a quantile for the special case of five equal proportions.

  2. Astrology. a quintile aspect.


adjective

  1. Astrology. of or relating to the aspect of two heavenly bodies that are one fifth of the zodiac, or 72°, apart.

quintile British  
/ ˈkwɪntaɪl /

noun

  1. an aspect of 72° between two heavenly bodies

  2. a fifth part of a distribution

"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

Etymology

Origin of quintile

1600–10; < Latin quīnt ( us ) fifth + -ile (as in quartile )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The highest quintile earns more than that amount.

From The Wall Street Journal Jun. 26, 2026

The next quintile earns as much as $65,100.

From The Wall Street Journal Jun. 26, 2026

His research paper, titled “You’re Not Hired,” found that employment of early career workers in the most AI-exposed quintile declined by 15% following the introduction of ChatGPT.

From MarketWatch Apr. 22, 2026

“The best performing quintile over time is the fourth—meaning down from highs—but less so than 60% of stocks.”

From Barron's Dec. 10, 2025

Similarly, the Income Dynamics data show that people from the lowest 5th quintile can migrate to the higher quintiles .

From Definition & Reality in the General Theory of Political Economy by Colignatus, Thomas

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