Yes, amp is a Scrabble word!
...and is worth 7 points in Scrabble, and 9 points in Words with Friends
amp
Noun
1. The basic unit of electric current adopted under the Systeme International d'Unites
2. A nucleotide found in muscle cells and important in metabolism; reversibly convertible to ADP and ATP
What Scrabble words can I make with the letters in amp?
3 Letter Words
2 Letter Words