Final answer:
A skiff is a small boat, and the term synonymous with skiff in the given options is 'Dinghy'.
Step-by-step explanation:
The term skiff refers to a small boat. Among the given options, A: Canoe, B: Yacht, C: Dinghy, and D: Raft, the correct synonymous term for skiff would be C: Dinghy.
Both a skiff and a dinghy are small boats often used for leisure, fishing, or as a companion boat for a larger vessel. A yacht, on the other hand, is typically much larger and is used for personal enjoyment or racing.
Canoes are narrow vessels used for paddling, while rafts are flat, buoyant structures for floating on water. Thus, the best match for a skiff is a dinghy.