stifle
Definitions
To restrain, stop, or prevent an action or expression.
To make someone unable to breathe properly; suffocate.
To suppress or curb the development of something.
Examples
She had to stifle a yawn during the long and tedious lecture.
The government attempted to stifle the protest by cutting off internet access.
He tried to stifle his laughter, but a loud snort escaped anyway.