ɡəˈɹɪlə ɪnˈsəːdʒ(ə)nt ɪnˈsəɹdʒənt ɪnˈsəːdʒ(ə)nt ɪnˈsəɹdʒənt ɪˈɹɛɡjəlɚ ˈɹɛbəl səbˈvɜɹsɪv in opposition to a civil authority or government a member of an irregular armed force that fights a stronger force by sabotage and harassment a person who takes part in an armed rebellion against the constituted authority (especially in the hope of improving conditions)