airtight

adjective

air·​tight ˈer-ˌtīt How to pronounce airtight (audio)
1
: impermeable to air or nearly so
an airtight seal
2
a
: having no noticeable weakness, flaw, or loophole
an airtight argument
b
: permitting no opportunity for an opponent to score
an airtight defense
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 The band was absolutely airtight, with drummer Daru Jones, bassist Dominic John Davis and keyboardist Quincy McCrary matching White’s on-stage improvisation to a tee. Ellise Shafer, Variety, 15 Jan. 2023 Transfer to an airtight container and set aside immediately. Nereya Otieno, Rolling Stone, 4 Feb. 2023 Each comes with an airtight lid and features a secure grip for easy pouring, whisking, or mixing. Lindsay Tigar, Peoplemag, 3 Feb. 2023 Store tightly wrapped or in an airtight container at room temperature for up to 1 day, or in the refrigerator for up to 2 days. Charlotte Druckman, WSJ, 1 Feb. 2023 The hopper features an airtight lid and UV-blocking tint, both of which help preserve the freshness of the coffee beans. Jamie Kim, Good Housekeeping, 14 Dec. 2022 To store your cranberries, place them in a container with an airtight lid and a layer of rice in the bottom to absorb moisture. USA TODAY, 3 Dec. 2022 It's designed to combat odors, locking them in with its airtight lid. Kathleen Willcox, Popular Mechanics, 28 May 2022 Reserve the rest in an airtight container in your fridge, for up to a week. Karla Alindahao, Forbes, 24 Jan. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'airtight.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1728, in the meaning defined at sense 1

Time Traveler
The first known use of airtight was in 1728

Dictionary Entries Near airtight

Cite this Entry

“Airtight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/airtight. Accessed 19 Mar. 2024.

Kids Definition

airtight

adjective
air·​tight -ˈtīt How to pronounce airtight (audio)
1
: so tightly sealed that no air can get in or out
an airtight container
2
: too strong or effective to fail or be defeated
an airtight argument

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