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octogenarian

American  
[ok-tuh-juh-nair-ee-uhn] / ˌɒk tə dʒəˈnɛər i ən /

adjective

  1. of the age of 80 years.

  2. between 80 and 90 years old.


noun

  1. a person who is between 80 and 90 years old.

octogenarian British  
/ ˌɒktəʊdʒɪˈnɛərɪən, ɒkˈtɒdʒɪnərɪ /

noun

  1. a person who is from 80 to 89 years old

"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

adjective

  1. of or relating to an octogenarian

"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

Usage

What does octogenarian mean? An octogenarian is someone in their 80s (80 to 89 years old), or someone who is 80 years old. Octogenarian can also be used as an adjective to describe someone in their 80s, as in Our audience is mostly made up of octogenarian women, or things related to such a person, as in I have entered my octogenarian years. It’s one of several similar terms used to refer to a person of a certain age, including quadragenarian (40s), quinquagenarian (50s), sexagenarian (60s), septuagenarian (70s), and nonagenarian (90s). Such words are more commonly used as people get older: quadragenarian and quinquagenarian are rarely used, but septuagenarian and octogenarian are more commonly used. Another less common word for octogenarian is octogenary. Example: Today is my last day as an octogenarian—tomorrow I begin my 90s!

Other Word Forms

Derived Forms

Etymology

Origin of octogenarian

1805–15; < Latin octōgēnāri ( us ) comprising eighty, eighty years old (equivalent to octōgēn ( ī ) eighty each + -ārius -ary ) + -an

Explanation

Someone who's octogenarian is older than 80 and younger than 90. If your great-aunt is 84, she's an octogenarian. You can use this word as an adjective or a noun for anyone who is in their eighties. Many octogenarians are grandparents. While one octogenarian might live in an assisted living residence and use a wheelchair, plenty of octogenarian folks drive their own cars and live in houses or apartments. Just like teenagers or thirty-somethings, octogenarians don't necessarily have much in common with each other aside from their age.

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Vocabulary lists containing octogenarian

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.

Octogenarian Conde was first elected in 2010, and was re-elected in 2015.

From Reuters • Sep. 9, 2020

Octogenarian Holocaust survivors still live with the pain of being separated from their parents.

From Slate • Jun. 19, 2018

Octogenarian UW weather guru Cliff Mass blamed the media.

From Seattle Times • Jan. 12, 2017

Lautenberg’s much younger pal ponders age Octogenarian Rep.

From Washington Post • Jun. 4, 2013

Octogenarian, ok-tō-je-nā′ri-an, n. and adj. one who is eighty years old, or between eighty and ninety.—adj.

From Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) by Various

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