airtight
adjective/ˈeətaɪt/
/ˈertaɪt/
- not allowing air to get in or out
- Store the cake in an airtight container.
- (figurative) an airtight alibi (= one that cannot be proved to be false)
Oxford Collocations DictionaryAirtight is used with these nouns:- container
- jar
- lid
- …
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airtight