Raft
Part of speech: noun
Definition: A flat structure made of planks, barrels etc., that floats on water, and is used for transport, emergencies or a platform for swimmers. A flat-bottomed inflatable craft for floating or drifting on water. A large (but unspecified) number, a lot. A collective noun for otters.
Part of speech: verb
Definition: to convey on a raft to make into a raft to travel by raft
Boat
Part of speech: noun
Definition: A craft used for transportation of goods, fishing, racing, recreational cruising, or military use on or in the water, propelled by oars or outboard motor or inboard motor or by wind.A full house.One of two possible conformers of cyclohexane rings (the other being chair), shaped roughly like a boat.
Part of speech: verb
Definition: To travel by boat.