1. to make or become dull, discolored, or less bright, especially through oxidation or corrosion
2. to damage or spoil the reputation or image of someone or something
Usage: figurative

Examples

• Silver jewelry tarnishes when exposed to air and moisture.
• The old brass doorknob tarnishes over time without proper care.
• Salt air tarnishes metal fixtures near the ocean.
• The scandal tarnishes the politician’s previously clean reputation.
• One bad review rarely tarnishes a restaurant’s overall image.
• His rude behavior tarnishes the company’s professional image.
• The controversy tarnishes what should have been a celebration.