Definition of hyperbole noun from the Oxford Advanced Learner's Dictionary

hyperbole

noun
haɪˈpɜːbəli
 
; haɪˈpɜːrbəli
 
[uncountable, countable, usually singular]
 
a way of speaking or writing that makes something sound better, more exciting, dangerous, etc. than it really is
Synonym
exaggeration
The film is being promoted with all the usual hyperbole.He's not usually given to hyperbole.