airtight
Americanadjective
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preventing the entrance or escape of air or gas.
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having no weak points or openings of which an opponent may take advantage.
an airtight contract.
adjective
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not permitting the passage of air either in or out
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having no weak points; rigid or unassailable
this categorization is hardly airtight
Other Word Forms
Etymology
Origin of airtight
Explanation
If something's airtight, it is completely sealed so that no air can get in or out of it. When you make homemade jam with the raspberries you picked, it's important to make sure the lids are airtight so the jam won't spoil. Many kinds of food and medicine you buy in a store are airtight. The airtight seal on a package, bag, or can assures you that the contents are safe from any germs that might get in and contaminate them. You can also use this adjective to mean "certain" or "indisputable," like an airtight alibi that can't be argued with, or an airtight plan that's guaranteed to work.
Vocabulary lists containing airtight
Everything, Everything
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"My Brother's Keeper" and "What Price Loyalty?"
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Z for Zachariah
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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.
For a stackable storage solution, our team loves the Mepal Airtight Storage Containers from the Food52 shop, which are not only practical but also look incredibly chic in your pantry.
From Salon • Oct. 30, 2021
Airtight barriers that “wall off” drivers so they are breathing different air than passengers could help, too, he said.
From Seattle Times • Aug. 23, 2020
Our testers were surprised that the containers didn’t retain any discernible food stains or smells, which wasn’t the case with the Popit containers or the Snapware Airtight set we recommended in 2015.
From Slate • Sep. 7, 2018
The lids in the Snapware Total Solution set are easy to snap closed, unlike those of the Snapware Airtight set, which were difficult to latch and repeatedly popped open.
From Slate • Sep. 7, 2018
Airtight jars, closed with airtight stoppers, may be used if the eggs are intended to be kept for a very long time.
From Poultry A Practical Guide to the Choice, Breeding, Rearing, and Management of all Descriptions of Fowls, Turkeys, Guinea-fowls, Ducks, and Geese, for Profit and Exhibition. by Piper, Hugh
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.
