Is advice a word in the Scrabble Dictionary

Yes, advice is playable

...and is worth 14 points.

Found in the following dictionaries

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

"Advice" Definition

noun

Information communicated; news. Often used in the plural: advices from an ambassador.
Opinion about what could or should be done about a situation or problem; counsel.
Recommendation regarding a decision or course of.
Information or notice given.
An official notice concerning a business transaction.