Yes, dance is a Scrabble word!

Verb

1. Move in a graceful and rhythmical way

2. Move in a pattern; usually to musical accompaniment; do or perform a dance

3. Skip, leap, or move up and down or sideways

Noun

1. An artistic form of nonverbal communication

2. A party of people assembled for dancing

3. Taking a series of rhythmical steps (and movements) in time to music

4. A party for social dancing