'oppression' definitions:

Definition of 'oppression'

From: WordNet
noun
The act of subjugating by cruelty; "the tyrant's oppression of the people" [syn: oppression, subjugation]
noun
The state of being kept down by unjust use of force or authority: "after years of oppression they finally revolted"
noun
A feeling of being oppressed [syn: oppression, oppressiveness]

Synonyms of 'oppression'

From: Moby Thesaurus