Vocabulary What does 喘息 (ぜんそく, zensoku) mean? 喘息 (ぜんそく, zensoku) means asthma. Quick factsReadingぜんそくRomajizensokuPart of speechnoun 喘息ぜんそくzensokuasthma1noun asthmaAlso written: ぜん息Kanji in this word息breath; rest; son; interest (money)