Meaning

• A sensation, pleasant or unpleasant, detected by inhaling air (or, the case of water-breathing animals, water) carrying airborne molecules of a substance.

  "I love the smell of fresh bread."

• The sense that detects odours.

• A conclusion or intuition that a situation is wrong, more complex than it seems, or otherwise inappropriate.

Meaning

• To sense a smell or smells.

  "I can smell fresh bread."

• Followed by like or of if descriptive: to have a particular smell, whether good or bad.

  "Her feet smell of cheese."

• (without a modifier) To smell bad; to stink.

  "Ew, this stuff smells."

• To have a particular tincture or smack of any quality; to savour.

  "A report smells of calumny."

• To exercise sagacity.

• To detect or perceive; often with out.

• To give heed to.