1. makes poor or reduces to poverty
Usage: third person singular present tense
2. makes worse in quality or reduces the strength, richness, or fertility of something
Usage: third person singular present tense

Examples

• The drought impoverishes the farming community every year.
• War impoverishes entire nations for generations.
• Overuse of pesticides impoverishes the soil.
• The disease impoverishes the body’s immune system.
• Poor education impoverishes the mind.
• The factory closure impoverishes the whole town.
• Monoculture farming impoverishes biodiversity.