Use 'outcry' to describe a strong reaction from many people to something seen as unacceptable. The community's outcry over the demolition of the historic park was heard at the city council meeting.
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Not Private
'Outcry' usually indicates a collective, public expression of disapproval, not a private complaint. The decision to cut down the ancient forest was met with a massive public outcry.
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Media Amplification
Reports of an 'outcry' often appear in news to highlight widespread public concern or debate. An outcry over privacy issues dominated media headlines as the new law came into effect.