Purr: meaning, definitions and examples

Generally used to describe the soft, comforting sound that cats make when they are content and happy.

• The cat started to purr when I scratched behind its ears

Used to describe a low, steady sound, often made by machinery or people softly singing without lyrics. Can be soothing or background noise.

• The air conditioner hummed quietly in the background
• She hummed her favorite tune while doing her homework

Represents a high-pitched, fast-moving sound typically produced by rapidly rotating objects or small motors.

• The drone made a slight whir as it took off
• The fan's whir helped him sleep on hot nights

Describes a deep, resonant sound, often associated with distant thunder, stomach noises, or heavy machinery.

• A rumble of thunder echoed in the distance
• His stomach began to rumble, reminding him that it was time for lunch