What does airtight mean?

airtight meaning in Etymology Dictionary

additionally air-tight, "impervious to air," 1760, from environment (n.1) + tight. Figurative feeling of "incontrovertible" (of arguments, alabis, etc.) is from 1929.

airtight meaning in General Dictionary

not allowing air or gas to pass in or out

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  • having no weak points

Sentence Examples with the word airtight

In one system the main cables terminate in large airtight iron boxes placed in the manholes.

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