Difference between Smelling and Smell

Smelling

Part of speech: verb

Definition: To sense a smell or smells.

Smell

Part of speech: noun

Definition: A sensation, pleasant or unpleasant, detected by inhaling air (or, the case of water-breathing animals, water) carrying airborne molecules of a substance.The sense that detects smells.

Part of speech: verb

Definition: To sense a smell or smells.To have the smell (of).To have a particular smell, whether good or bad.

Example sentence: Guests, like fish, begin to smell after three days.