plural thirties
1
: a number equal to three times 10 see Table of Numbers
2
thirties plural
: the numbers 30 to 39
specifically
: the years 30 to 39 in a lifetime or century
3
: a sign of completion : end
—usually written 30
wrote thirty on the last page of the story
4
: the second point scored by a side in a game of tennis
thirty
adjective
thirty
pronoun, plural in construction
Examples of thirty in a Sentence
The temperature outside is in the high thirties.
He is in his thirties.
Recent Examples on the Web
And besides, this man was now in his early thirties.
—
Literary Hub, 28 May 2026
For instance, imagine a couple navigating their early thirties.
—Mark Travers, Forbes.com, 24 May 2026
Now, in my thirties, family is my priority above all else.
—Hilary Lewis, HollywoodReporter, 24 May 2026
In Europe, Clinique La Prairie in Switzerland has become a flagship for the trend, with weeklong programs supervised by more than 50 specialized doctors and a growing audience of guests in their late thirties and forties focused on prevention.
—Hanna Wickes, Sacbee.com, 19 May 2026
See All Example Sentences for thirty
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Literary Hub, 28 May 2026
For instance, imagine a couple navigating their early thirties.
—Mark Travers, Forbes.com, 24 May 2026
Now, in my thirties, family is my priority above all else.
—Hilary Lewis, HollywoodReporter, 24 May 2026
In Europe, Clinique La Prairie in Switzerland has become a flagship for the trend, with weeklong programs supervised by more than 50 specialized doctors and a growing audience of guests in their late thirties and forties focused on prevention.
—Hanna Wickes, Sacbee.com, 19 May 2026
See All Example Sentences for thirty
Cite this Entry
“Thirty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thirty. Accessed 29 May. 2026.
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