Search Result for "outroar": 
Wordnet 3.0

VERB (1)

1. roar louder than; 



The Collaborative International Dictionary of English v.0.48:

Outroar \Out*roar"\, v. t.
   To exceed in roaring.
   [1913 Webster]


WordNet (r) 3.0 (2006):

outroar
    v 1: roar louder than