Meaning of “hot air” in the English Dictionary

british dictionary

"hot air" in British English

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hot air

informal

If something that someone says is hot air, it is not sincere and will have no practical results:

His promises turned out to be a lot of hot air.

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

"hot air" in American English

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hot airnoun [ U ]

/ˈhɑt̬ ˈeər/ infml

words that do not really mean anything or are not sincere:

His promises turned out to be a lot of hot air.

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

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