Yes, sap is a Scrabble word!
...and is worth 5 points in Scrabble, and 6 points in Words with Friends
sap
Verb
1. Deplete
2. Excavate the earth beneath
Noun
1. A watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant
2. A person who lacks good judgment
3. A piece of metal covered by leather with a flexible handle; used for hitting people
What Scrabble words can I make with the letters in sap?
3 Letter Words
2 Letter Words