Hub'bub noun [ Confer Whoobub , Whoop , Hoop , intransitive verb ] A loud noise of many confused voices; a tumult; uproar. Milton. « This hubbub of unmeaning words.» Macaulay. Found on http://www.encyclo.co.uk/webster/H/67
a loud, confused noise, as of many voices: There was quite a hubbub in the auditorium after the announcement. · tumult; uproar. Found on https://www.infoplease.com/dictionary/hubbub