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Definition of hot-air balloon noun from the Oxford Advanced Learner's Dictionary

hot-air balloon

noun
 
/ˌhɒt ˈeə bəluːn/
 
/ˌhɑːt ˈer bəluːn/
(also balloon)
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  1. a large balloon made of strong material that is filled with hot air or gas to make it rise in the air, usually carrying a basket for passengersTopics Transport by airb2
See hot-air balloon in the Oxford Advanced American Dictionary
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trait
noun
 
 
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