aging
Americannoun
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the process of becoming old or older.
The aging of the population has had an effect on state revenues.
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the process of bringing a product, material, etc., to maturity or a state fit for use.
the proper aging of cheese in controlled conditions of temperature and humidity.
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the process of making something seem older than it is.
The leather tabletop is a recent replacement with deliberate aging and antiquing.
adjective
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becoming old or older; showing signs of growing old.
Many of us are caring for an aging parent in declining health.
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giving the appearance of being old or older.
They used aging makeup on some of the actors instead of recasting the roles.
Etymology
Origin of aging
First recorded in 1400–50; late Middle English; age ( def. ) + -ing 1 ( def. ) for the noun; age ( def. ) + -ing 2 ( def. ) for the adjective
Explanation
Aging means growing older. You could say that your glamorous grandparents make aging look easy. The process of getting older, especially as people reach middle age and beyond, is called aging, and it's also an adjective that describes someone or something going through this process. Your aging French teacher might find it harder and harder to read her own writing on the chalkboard, and an aging motorcycle probably needs to be repaired more often. The verb age, or "grow older," is at the heart of aging, and its Latin root is aevum, "lifetime."
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.
But if multiple visits reveal unrelated faults within an aging cistern, additional charges become easier to justify.
From MarketWatch • Jun. 10, 2026
Myrick had left a banking career in his mid-40s to care for his aging parents.
From The Wall Street Journal • Jun. 7, 2026
They point to climate change, aging water infrastructure, and weak monitoring systems as factors that could allow dangerous amoebae to spread and become harder to control.
From Science Daily • Jun. 6, 2026
Continuously inhabited for the last quarter-century, the aging ISS is scheduled to be pushed into Earth's orbit before crashing into an isolated spot in the Pacific Ocean in 2030.
From Barron's • Jun. 5, 2026
Earlier that day, Germany’s aging president, Paul von Hindenburg, had appointed Hitler chancellor, making him the second-most powerful man in the country.
From "Hitler Youth: Growing Up in Hitler's Shadow" by Susan Campbell Bartoletti
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.