noun, noun which may take the genitive case particle 'no'
disorderly gathering; motley crowd; rabble
Almost exclusively used in the set phrase 烏合の衆 (うごうのしゅう), meaning a disorderly mob or an undisciplined crowd. Rarely appears outside this compound.
彼らは烏合の衆に過ぎない。
They are nothing more than a disorderly mob.
烏合の衆では、組織的な行動はとれない。
A motley crowd cannot take organized action.