Definition of fever pitch noun from the Oxford Advanced Learner's Dictionary

 

fever pitch

 noun
noun
BrE
 
; NAmE
 
[uncountable, countable]
 
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a very high level of excitement or activity Speculation about his future had reached fever pitch. Excitement has been at fever pitch for days. The crowd had been roused to fever pitch by the drama of the game.
See the Oxford Advanced American Dictionary entry: fever pitch