A particular odor detected by the nose.

• Can be pleasant or unpleasant.

The sense by which odors are perceived.

• Olfaction.

A hint or suspicion that something is wrong.

• An unfavorable impression.

To perceive an odor with the nose.

• To sniff or detect by smelling.

To have a particular odor, often with like or of.

• To emit a scent.

To have a bad odor; to stink.

To detect, suspect, or discover, often with out.

• To sense trouble before it happens.