Is help a word in the Scrabble Dictionary

Yes, help is playable

...and is worth 10 points.

Found in the following dictionaries

Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)

"Help" Definition

noun

A person employed to help, especially a farm worker or domestic servant.
Aid or assistance.
Relief; remedy.
Such employees considered as a group. Often used with the.
The act or an instance of helping.

interjection

Used as an appeal for urgent assistance:.

idiom

Help (oneself) to Informal To take (something) without asking permission: The thief helped himself to our family silver.
Help (oneself) to To serve or provide oneself with: Help yourself to the cookies.

verb-intransitive

To be of service; give assistance.

verb-transitive

To change for the better; improve: A fresh coat of paint will help a scarred old table.
To contribute to the furtherance of; promote.
To ease; relieve: medication to help your cold.
To give assistance to; aid: I helped her find the book. He helped me into my coat.
To give relief to: help the needy.