Definition of airtight
1 : impermeable to air or nearly so an airtight seal
2a : having no noticeable weakness, flaw, or loophole an airtight argumentb : permitting no opportunity for an opponent to score an airtight defense
Examples of airtight in a Sentence
Store the food in an airtight container.
The defendant had an airtight alibi.
Recent Examples of airtight from the Web
Make the cookies a day ahead and store in an airtight container between layers of parchment paper.
Washington’s first Swan Boat consisted of two 26-foot-long airtight pontoons on which rested seven rows of seats atop a six-foot-wide platform.
On Thursday, the president offered the following airtight case for believing that the Democratic Party hacked its own emails, as part of a nefarious plot to tarnish the glory of Trump’s inevitable victory … or something.
Cut lemons last about two to three days in an airtight container.
Cool completely before transferring to an airtight container; refrigerate until ready to use.
Store refrigerated in airtight container for up to one week.
The same way humans chew to accelerate digestion, machines grind organics into a slurry the consistency of a milkshake, which is fed into a large, airtight tank heated to about 100 degrees, called a digester.
And that juggernaut will require the Cleveland Cavaliers to play airtight defense in these NBA Finals.
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.
First Known Use of airtight
AIRTIGHT Defined for English Language Learners
Definition of airtight for English Language Learners
: tightly sealed so that no air can get in or out
: too strong or effective to fail or to be defeated
AIRTIGHT Defined for Kids
Definition of airtight for Students
: so tightly sealed that no air can get in or out Store the cookies in an airtight container.
Seen and Heard
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