Other forms: ferried; ferries; ferrying
A ferry is a boat that carries people, cars, and cargo back and forth across a body of water. The Staten Island Ferry ferries commuters from Manhattan to Staten Island every ten minutes during rush hour.
To ferry means to transport by ferry, or to transport in other ferry-like ways, i.e., multiple short trips. If you have an ice-skating birthday party, your dad might ferry a few van loads of kids back to your house afterward, for pizza and cake.