IPA: //ˈklæmər//
KK: /ˈklæmər/
A loud and confused noise, especially made by a group of people expressing their demands or complaints.
The clamour of the crowd grew louder as the concert began.
Clamour originates from Old French 'clamour' (meaning a loud cry or shout), which in turn comes from Latin 'clamor' (meaning a shout or cry). The word 'clamour' refers to a loud and confused noise, especially that of people shouting.
Think of a loud 'cry' ('clamor') that creates a 'clamour' — it helps you remember that clamour means a loud noise or outcry.