Suppress (verb)

1. Prevent the development, expression, or fulfilment of (something).
2. Put an end to (a rebellion or other undesirable activity) by force.

Origin:

Late middle english (in the sense "prevent the development or expression of"): from latin suppress- "pressed down, put an end to", from the verb supprimere, from sub- "under" + premere "press".

Examples:

1. The government suppressed the demonstration.
2. He suppressed a smile.
3. She suppressed her anger.
4. The company suppressed the information from the public.
5. The authorities suppressed the truth about the accident.