防ぼう火か線せんMeaningsNoun1. a firebreakKanji used防prevent火fire線linePitch accentぼうかせんComposed of防ぼう火かfire prevention; fire control; fireproofingNoun線せんline; stripe; stria; line (e.g. telephone line); wire; ray (e.g. X-ray); beam; line (e.g. of a railroad); track; route; …Noun