|Origin:||, past participle of supprimere, from sub- ( SUB-) + premere 'to press'|
to stop people from opposing the government, especially by using force:
The uprising was ruthlessly suppressed.
if important information or opinions are suppressed, people are prevented from knowing about them, even if they have a right to know:
The police were accused of suppressing evidence.
to stop yourself from showing your feelings:
Harry could scarcely suppress a smile.
to prevent something from growing or developing, or from working effectively:
The virus suppresses the body's immune system.
—suppression noun [uncountable]
the suppression of opposition parties