1. past tense of prey; hunted and killed for food
2. past tense of prey; took advantage of or exploited someone vulnerable
Usage: often followed by ‘on’ or ‘upon’
3. past tense of prey; caused persistent worry or distress
Usage: often followed by ‘on’ or ‘upon’

Examples

• The hawk preyed on small rodents in the field.
• Scammers preyed upon elderly residents in the neighborhood.
• The wolves preyed on the weakest members of the herd.
• Doubts about his decision preyed on his mind all night.
• The con artist preyed on people’s trust and generosity.
• Guilt preyed upon her conscience for months after the incident.