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heresy noun

Click to hear the UK pronunciation of this wordClick to hear the US pronunciation of this word/ˈher.ə.si/ n

Definition

[C or U] (the act of having) an opinion or belief that is the opposite of or against what is the official or popular opinion, or an action which shows that you have no respect for the official opinion
Radical remarks like this amount to heresy for most members of the Republican party.
She committed the heresy of playing a Madonna song on a classical music station.
[U] a belief which is against the principles of a particular religion
He was burned at the stake in the fifteenth century for heresy.

(Definition of heresy noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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