to choke; to stifle; to struggle to breathe or stop breathing

(literary) to be blocked, hindered, or obstructed

stuffy or badly ventilated; feeling oppressed due to lack of fresh air or because of a gloomy atmosphere

to stop up, block, or obstruct so that nothing can pass through

To restrain one's anger and suppress physical or emotional desires; to practice self-control and moderation in one's passions.

a chemical warfare agent that causes severe lung damage and asphyxiation

To suppress or control one's selfish desires or lusts

stuck and difficult to carry out; obstructed and hard to put into practice