|Origin:||, past participle of reprimere 'to press back', from premere; PRESS2|
to stop yourself from doing something you want to do:
Brenda repressed the urge to shout at him.
I repressed a smile.
if someone represses upsetting feelings, memories etc, they do not allow themselves to express or think about them:
He had long ago repressed the painful memories of his childhood.
to control a group of people by force [↪ suppress, oppress]:
The police were widely criticized for their role in repressing the protest movement.