fire starter
noun [ C ] uk/ˈfaɪə ˌstɑː.tər/ us/ˈfaɪr ˌstɑːr.t̬ɚ/
US (UK firelighter)引火物，火种
a small block of material that burns very easily and is used for helping to start wood or coal fires
纵火犯
a person who intentionally and illegally sets fire to something such as a building