Strong's #2351: thorubos (pronounced thor'-oo-bos)
 from the base of 2360; a disturbance:--tumult, uproar.
Thayer's Greek Lexicon:
 ́ 
 
  thorubos 
 
 1) a noise, tumult, uproar
 
 1a) of persons wailing
 1b) of a clamorous and excited multitude
 1c) of riotous persons
 
 2) a tumult, as a breach of public order
 
  Part of Speech: noun masculine
Relation: from the base of G2360
 
Usage:
This word is used 7 times:
Matthew 26:5: "feast day, lest there be  an uproar among the people."
Matthew 27:24: "nothing, but that rather  a tumult was made, he took water, and washed"
Mark 5:38: "ruler of the synagogue, and seeth  the tumult, and them that wept and wailed greatly."
Mark 14:2: "feast day, lest there be  an uproar of the people."
Acts 20:1: "And after the  uproar was ceased, Paul called unto him the disciples,"
Acts 21:34: "not know the certainty for the  tumult, he commanded"
Acts 24:18: "with multitude, nor with  tumult."