intransitive verb
Definition: To take a quick breath of air or smell something, often in a light or brief manner.
Example: She took a whiff of the fresh flowers in the garden.
noun
Definition: A brief smell or scent that you notice for a short time.
Example: I caught a whiff of fresh bread as I walked past the bakery.
transitive verb
Definition: To take a quick breath in through the nose, often to smell something, or to blow something in a light, quick manner.
Example: The dog whiffed the air, trying to catch a scent.