Yes, drunk is a Scrabble word!

Verb

1. Take in liquids

2. Consume alcohol

3. Propose a toast to

4. Be fascinated or spell-bound by; pay close attention to

5. Drink excessive amounts of alcohol; be an alcoholic

Adjective

1. Stupefied or excited by a chemical substance (especially alcohol)

2. As if under the influence of alcohol

Noun

1. A chronic drinker

2. Someone who is intoxicated