Yes, pain is a Scrabble word!

Verb

1. Cause bodily suffering to and make sick or indisposed

2. Cause emotional anguish or make miserable

Noun

1. A symptom of some physical hurt or disorder

2. Emotional distress; a fundamental feeling that people try to avoid

3. A somatic sensation of acute discomfort

4. A bothersome annoying person

5. Something or someone that causes trouble; a source of unhappiness