Yes, talk is a Scrabble word!
...and is worth 8 points in Scrabble, and 9 points in Words with Friends
talk
Verb
1. Exchange thoughts; talk with
2. Express in speech
3. Use language
4. Reveal information
5. Divulge confidential information or secrets
6. Deliver a lecture or talk
Noun
1. An exchange of ideas via conversation
2. Discussion; (`talk about' is a less formal alternative for `discussion of')
3. The act of giving a talk to an audience
4. A speech that is open to the public
5. Idle gossip or rumor
What Scrabble words can I make with the letters in talk?
3 Letter Words
2 Letter Words