Meaning of SUPPRESS in English

sup ‧ press /səˈpres/ BrE AmE verb [transitive]

[ Date: 1300-1400 ; Language: Latin ; Origin: past participle of supprimere , from sub- ( ⇨ ↑ sub- ) + premere 'to press' ]

1 . to stop people from opposing the government, especially by using force:

The uprising was ruthlessly suppressed.

2 . 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.

3 . to stop yourself from showing your feelings:

Harry could scarcely suppress a smile.

suppressed anger

4 . to prevent something from growing or developing, or from working effectively:

The virus suppresses the body’s immune system.

—suppressible adjective

—suppression /səˈpreʃ ə n/ noun [uncountable] :

the suppression of opposition parties

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.