The term BOAT TRAILER can be broken down into two words, WAKE and BOAT. WAKE is a four letter word meaning the track of disturbed water left behind a BOAT as it moves through the water. BOAT is a three letter word meaning a vessel used for transportation on water. A BOAT trailer is a trailer designed to transport a BOAT from one location to another. It is typically towed by a vehicle and is equipped with features such as rollers, winches, and tie-downs to secure the BOAT during transport.