noun, noun or participle which takes 'suru', intransitive verb, noun which may take the genitive case particle 'no'
suffocation; choking; asphyxia
Refers to the state or act of being unable to breathe, whether from external obstruction, lack of oxygen, or medical causes. Used both literally and figuratively (e.g., a stifling atmosphere).
煙で窒息しそうになった。
I almost suffocated from the smoke.
窒息事故を防ぐ
To prevent choking accidents, be careful with small parts.
その部屋は息が詰まるような窒息感があった。
The room had a stifling, suffocating atmosphere.