Yes, sting is a Scrabble word!

Verb

1. Cause a sharp or stinging pain or discomfort

2. Deliver a sting to

3. Saddle with something disagreeable or disadvantageous

4. Cause a stinging pain

5. Cause an emotional pain, as if by stinging

Noun

1. A kind of pain; something as sudden and painful as being stung

2. A mental pain or distress

3. A painful wound caused by the thrust of an insect's stinger into skin

4. A swindle in which you cheat at gambling or persuade a person to buy worthless property