Yes, smell is a Scrabble word!

Verb

1. Inhale the odor of; perceive by the olfactory sense

2. Emit an odor

3. Smell bad

4. Have an element suggestive (of something)

5. Become aware of not through the senses but instinctively

Noun

1. The sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous form

2. Any property detected by the olfactory system

3. The general atmosphere of a place or situation and the effect that it has on people

4. The faculty that enables us to distinguish scents

5. The act of perceiving the odor of something