Entry 1 sense Webster, 1913 Hubbub /hŭb'-əb/ · Hub·bub · IPA /ˈhʌbʌb/ 01 n. A loud noise of many confused voices; a tumult; uproar. 1. A loud noise of many confused voices; a tumult; uproar. “This hubbub of unmeaning words.” — Macaulay.