Meaning of the word airtight in English

What does airtight mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

airtight

US /ˈer.taɪt/
UK /ˈeə.taɪt/
"airtight" picture

Adjective

1.

not allowing air to escape or pass through

Example:
Store the cookies in an airtight container to keep them fresh.
The windows were airtight, so no draft could get in.
2.

having no weak points or flaws; impossible to refute

Example:
The prosecutor presented an airtight case against the defendant.
He had an airtight alibi for the night of the crime.