► 動詞急変  [きゅうへん]  [
急変する]    
meaning:  change  rank: 3☆ 
事態は急変した ⇨ The situation took a dramatic turn  
(☛ Change suddenly, typically for worse)► 名詞急変  [きゅうへん]    
meaning:  change  rank: 3☆   
(☛ Change suddenly, typically for worse)More examples:- 患者の容態が急変した ⇨ The condition of the patient suddenly changed