franc-tireur

• IPA^(key): /fʁɑ̃.ti.ʁœʁ/

franc-tireur m (plural francs-tireurs, feminine franche-tireuse or franc-tireuse)

1. (military) a sniper, an irregular, an impromptu guerrilla
2. (figuratively) someone who works alone, outside of the rules

• Italian: franco tiratore
• Spanish: francotirador
• Catalan: franctirador

• “franc-tireur”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.