A loud and persistent noise or shouting, or a loud demand or expression of public opinion.
From Middle English and Old French 'clamor,' derived from Latin 'clamor' meaning 'a loud call or shout.' The root is related to 'clamare' (to cry out), which is the source of many English words related to loud expression.
The word 'clamor' literally captures the sound it describes—it has that hard 'cl' and open 'or' ending that makes your mouth want to shout it! Languages often use sound-mirroring (onomatopoeia's cousin) in their word choices.
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