1. a person who owns or operates a mill, especially one that grinds grain into flour
2. any of various moths with powdery wings that are attracted to light

Examples

• The miller ground wheat into flour at the old stone mill.
• Our town’s miller has been in business for three generations.
• The miller checked the grain quality before processing.
• A miller moth flew around the porch light all evening.
• The miller’s dusty wings left powder on the window screen.
• Local farmers brought their corn to the miller for grinding.
• The miller moth is common in many parts of North America.