air·​tight | \ ˈer-ˌtīt How to pronounce airtight (audio) \

Definition of airtight

1 : impermeable to air or nearly so an airtight seal
2a : having no noticeable weakness, flaw, or loophole an airtight argument
b : permitting no opportunity for an opponent to score an airtight defense

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Other Words from airtight

airtightness noun

Examples of airtight in a Sentence

Store the food in an airtight container. The defendant had an airtight alibi.
Recent Examples on the Web Let cool to room temperature, then ladle into pint jars or other airtight containers and refrigerate 24 hours. Tribune News Service, cleveland, 24 Aug. 2021 Store leftovers in airtight containers at room temperature or in the refrigerator. Robin Miller, The Arizona Republic, 13 Aug. 2021 How to prevent silverfish infestations: Seal food in airtight containers. Kelly Allen, House Beautiful, 20 July 2021 Do Your Own Pest Control recommends storing food in airtight containers, as well as regularly vacuuming crevices that crumbs may fall into. Samantha Lawyer, Country Living, 8 June 2021 Meats and cheeses need to be vacuum packed or at least in airtight containers or resealable Ziploc bags, but sometimes those can be penetrated by water if they’re not fully closed. Joe Jackson, Outside Online, 6 June 2021 This set of airtight food containers Between all the snacks, cereals and other food items that come in throwaway packaging, all our valuable counter space seems to get eaten right up. Jon Winkler, USA TODAY, 3 June 2021 After measuring shelf depth, width, and height, Kokaliares selected plastic bins, glass jars, airtight acrylic containers, and baskets to corral each category. Jessica Brinkert Holtam, Better Homes & Gardens, 22 Mar. 2021 Divide the rice among 4 bowls or airtight containers and top each with the chicken mixture, cucumber and a lime wedge. Paul Stephen,, 30 Dec. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'airtight.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of airtight

1728, in the meaning defined at sense 1

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Time Traveler for airtight

Time Traveler

The first known use of airtight was in 1728

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Dictionary Entries Near airtight

air taxi



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Statistics for airtight

Last Updated

7 Oct 2021

Cite this Entry

“Airtight.” Dictionary, Merriam-Webster, Accessed 17 Oct. 2021.

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More Definitions for airtight



English Language Learners Definition of airtight

: tightly sealed so that no air can get in or out
: too strong or effective to fail or to be defeated


air·​tight | \ ˈer-ˈtīt How to pronounce airtight (audio) \

Kids Definition of airtight

: so tightly sealed that no air can get in or out Store the cookies in an airtight container.

More from Merriam-Webster on airtight

Thesaurus: All synonyms and antonyms for airtight

Nglish: Translation of airtight for Spanish Speakers


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