seventy

1 of 3

noun (1)

sev·​en·​ty ˈse-vən-tē How to pronounce seventy (audio)
ˈse-bᵊm-
-dē
plural seventies
1
: a number equal to seven times 10 see Table of Numbers
2
seventies plural : the numbers 70 to 79
specifically : the years 70 to 79 in a lifetime or century
3
Seventy : a Latter-day Saint elder ordained for missionary work under the apostles
seventieth adjective or noun
seventy adjective
seventy pronoun, plural in construction

seventieth

2 of 3

adjective

sev·​en·​ti·​eth ˈsevən|tēə̇th How to pronounce seventieth (audio)
-vᵊm|
ˈsebᵊm|
|dē-
1
: being number 70 in a countable series
the seventieth day
see Table of Numbers
2
: being one of 70 equal parts into which something is divisible
a seventieth share of the money

seventieth

3 of 3

noun (2)

"
plural -s
1
: number 70 in a countable series
2
: the quotient of a unit divided by 70 : one of 70 equal parts of something
one seventieth of the total

Examples of seventy in a Sentence

Noun (1) She is in her seventies.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
By 1 pm, temperatures were in the mid-seventies, according to a post by the organization Climate Reality. Marshall Shepherd, Forbes.com, 4 July 2026 Inflation, while persistent, is nowhere near the double-digit nightmare of the late seventies. Lynn Schmidt, Mercury News, 2 July 2026 By the late nineteen-seventies, as the manufacturing economy declined and wealth became increasingly concentrated in the financial sector, traditional pathways to middle-class prosperity began to narrow. Hua Hsu, New Yorker, 22 June 2026 Yuji Akagawa, a grandfather in his seventies, was the proprietor and key administrator. Literary Hub, 17 June 2026 See All Example Sentences for seventy

Word History

Etymology

Noun (1)

seventy, adjective, from Middle English, from Old English seofontig, short for hundseofontig, from hundseofontig, noun, group of seventy, from hund hundred + seofon seven + -tig group of ten; akin to Old English tīen ten

Adjective

Middle English seventithe, from Old English hundseofontigotha, from hundseofontig seventy + -otha, -tha -th

First Known Use

Noun (1)

12th century, in the meaning defined at sense 1

Time Traveler
The first known use of seventy was in the 12th century

Cite this Entry

“Seventy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seventy. Accessed 10 Jul. 2026.

Kids Definition

seventy

noun
plural seventies
: a number equal to seven times 10 see number
seventieth adjective or noun
seventy adjective or pronoun

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