It may be "Parking" brake engaged, but symbolds vary greatly from vehicle to vehicle. The best way to know for sure is to check your Owner's Manual. It should have a graphic of each dashboard warning light with an explanation of what it means.
You can also see an overview of many common and newer dashboard warning lights at
〉 Answered on Jul 19th, 2012 by Kristin Brocoff, Director of Corporate Communications at CarMD.com