Classify means to arrange in classes. When you classify an object, you are typically assigning that object to a specific category. Classify is a transitive verb. You can find more information here: http://www.merriam-webster.com/dictionar...

Classify means to place an object into a group based on certain characteristics. In biology, scientists classify plants and animals into groups based on physical characteristics. You can find more information here: http://en.wikipedia.org/wiki/Classificat...(biology)