intransitive verb
Definition: To make a soft, vibrating sound, often associated with contentment, especially by cats.
Example: The cat purred happily as it curled up on my lap.
noun
Definition: A soft, vibrating sound made by a cat when it is happy or content.
Example: The cat lay on my lap, making a gentle purr as it relaxed.
transitive verb
Definition: To make a soft, vibrating sound, often used to describe the sound that cats make when they are content.
Example: The cat began to purr softly as I stroked its fur.