1. a person or group that treats others harshly or unjustly, especially by denying them basic rights or freedoms

Examples

• The rebels fought against their oppressor for decades.
• History remembers him as a cruel oppressor of his people.
• The civil rights movement challenged systemic oppressors.
• She refused to bow down to any oppressor.
• The oppressor used fear to maintain control over the population.
• Many viewed the colonial government as an oppressor.
• The novel depicts the struggle between the oppressed and their oppressor.