clamor

(noun) a loud harsh or strident noise. Synonyms: blare, blaring, cacophony, din.

(noun) loud and persistent outcry from many people. Synonyms: clamoring, clamour, clamouring, hue and cry. Example: "He ignored the clamor of the crowd."

(verb) make loud demands. Synonyms: clamour. Example: "He clamored for justice and tolerance."

(verb) utter or proclaim insistently and noisily. Synonyms: clamour. Example: "The delegates clamored their disappointment."

(verb) compel someone to do something by insistent clamoring. Example: "They clamored the mayor into building a new park."