Yes, neck is a Scrabble word!
...and is worth 10 points in Scrabble, and 12 points in Words with Friends
neck
Verb
1. Kiss, embrace, or fondle with sexual passion
Noun
1. The part of an organism (human or animal) that connects the head to the rest of the body
2. A narrow elongated projecting strip of land
3. A cut of meat from the neck of an animal
4. A narrow part of an artifact that resembles a neck in position or form
5. An opening in a garment for the neck of the wearer; a part of the garment near the wearer's neck
What Scrabble words can I make with the letters in neck?
3 Letter Words
2 Letter Words