救きゅう難なん浮ふ標ひょうきゅうなんふひょうMeanings1nounlifebuoyrare termRare technical term for a lifebuoy; the more common word is 救命浮環 (きゅうめいふかん).See also: 救命浮環船ふねには救きゅう難なん浮
