imisore  2    (no sg.) youth (with negative connotation), youth mob
imisoresore  2    (no sg.) youth (with negative connotation), youth gang, youth mob
umusore (aba-)     1  class 1
singular: umu-
plural: aba-
  
1. adolescent, 2. bachelor, unmarried young man, (pl. also imisore, then with negative connotation: youth mob)
youth    (age group) ubusore
(young man) umusore
(youth) intōre
(youth mob) imisore
(group of) urwaruka
En-En dictionary 
mob    (of youth) imisore
En-En dictionary