drowning       
noun [ C or U ] uk/ˈdraʊn.ɪŋ/ us/ˈdraʊn.ɪŋ/
 溺死,淹死
death caused by being underwater and not being able to breathe, or a case when this happens
  There were three drownings in the lake last year. 去年这个湖里发生过3起溺水身亡事件。 
 death by drowning 溺亡