Meaning of “airtight” in the English Dictionary

american-english dictionary

"airtight" in British English

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airtightadjective

uk /ˈeə.taɪt/ us /ˈer.taɪt/

(Definition of “airtight” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"airtight" in American English

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airtightadjective

us /ˈeərˌtɑɪt/

completely shut so that no air can get in or out:

Put the cookies in an airtight jar to keep them fresh.

(Definition of “airtight” from the Cambridge Academic Content Dictionary © Cambridge University Press)