quintile

quintile noun: any of the quantiles which divide an ordered sample population into five equally numerous subsets.

Noun

quintile (plural quintiles)

Any of the quantiles which divide an ordered sample population into five equally numerous subsets.
(broadly) A subset thus obtained.
- Effectively no household making less than $28,000 will pay federal income tax – usually about 15% of the bottom income quintile has some tax liability.2021 August 19, Tami Luhby, “Far fewer Americans owed federal income tax in 2020 because of the pandemic”, in CNN, archived from the original on 08 Nov 2022
- “It’s well known that the lowest income consumer is really struggling with inflation, but from a purely economic standpoint, it is the higher quintiles of earners that do the most spending,” Nanette Abuhoff Jacobson, global investment strategist at Hartford Funds, told CNN.2024 May 19, Bryan Mena, “Wealthy Americans are starting to spend more carefully”, in CNN Business, archived from the original on 15 Jul 2024
An aspect of planets that are distant from each other by one fifth of a zodiac (72°)

Quintile

(alternative, historical, obsolete) Alternative form of Quintilis: the former Roman name of the month July.

plural	quintiles

From quint- + -ile.

From Latin Quīntīlis (“Fifth Month”).

What does quintile mean?: Quintile means any of the quantiles which divide an ordered sample population into five equally numerous subsets.
What part of speech is quintile?: Quintile can be a noun or a proper noun.
What is the plural of quintile?: The plural of quintile is quintiles.

Adapted from Wiktionary: quintile (page history and authors); Quintile (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Cite this entry: “quintile.” Word.ws, https://word.ws/quintile. Based on Wiktionary, CC BY-SA 4.0.