Up"roar (?), n. [D. oproer; akin to G. aufruhr, Dan. oprör, Sw. uppror; D. op up + roeren to stir; akin to AS. hr&?;ran to stir, hr&?;r stirring, active, G. rühren to stir, OHG. ruoren, Icel. hræra, Dan. röre, Sw. röra. Cf. Rearmouse.] [In verse, sometimes accented on the second syllable.] Great tumult; violent disturbance and noise; noisy confusion; bustle and clamor.

But the Jews which believed not, . . . set all the city on an uproar.

Up*roar" (?), v. t. To throw into uproar or confusion. [Obs.] "Uproar the universal peace." Shak.

Up*roar", v. i. To make an uproar. [R.] Carlyle.

Up"roar (?), n. [D. oproer; akin to G. aufruhr, Dan. oprör, Sw. uppror; D. op up + roeren to stir; akin to AS. hr&?;ran to stir, hr&?;r stirring, active, G. rühren to stir, OHG. ruoren, Icel. hræra, Dan. röre, Sw. röra. Cf. Rearmouse.] [In verse, sometimes accented on the second syllable.] Great tumult; violent disturbance and noise; noisy confusion; bustle and clamor.

But the Jews which believed not, . . . set all the city on an uproar.

Up*roar" (?), v. t. To throw into uproar or confusion. [Obs.] "Uproar the universal peace." Shak.

Up*roar", v. i. To make an uproar. [R.] Carlyle.

• tumultuous, noisy excitement
  
• load confused noise, especially when coming from several sources