1. to make a continuous, trilling sound like that of certain insects or birds

1. a continuous, trilling sound made by insects, birds, or machinery

Examples

• The cicadas churr loudly in the summer heat.
• A nightjar churrs its distinctive call at dusk.
• The sewing machine made a steady churr as it stitched the fabric.
• We heard the churr of grasshoppers in the tall grass.
• The bird churrs to attract a mate during breeding season.
• The motor began to churr and vibrate.