Yes, north is a Scrabble word!

Adverb

1. In a northern direction

Adjective

1. Situated in or facing or moving toward or coming from the north

Noun

1. The region of the United States lying to the north of the Mason-Dixon line

2. The United States (especially the northern states during the American Civil War)

3. The cardinal compass point that is at 0 or 360 degrees

4. A location in the northern part of a country, region, or city

5. The direction corresponding to the northward cardinal compass point

6. The direction in which a compass needle points

7. British statesman under George III whose policies led to rebellion in the American colonies (1732-1792)