What term is used for rope larger than 1.75 inches in diameter?

The term used for rope larger than 1.75 inches in diameter is often referred to as "cable." In maritime contexts, "line" typically describes rope or cord used for various purposes, but the specific categorization based on diameter distinguishes larger forms.

When the diameter exceeds 1.75 inches, the characteristics and applications of the material change, aligning it more closely with cables, which are constructed for more heavy-duty applications such as mooring or towing. Understanding these distinctions is essential in nautical practice, as different types of lines and cables serve specific functions and safety considerations aboard vessels.

The other terms, while related to cordage, do not emphasize the size descriptor relevant to the question. "Rope" refers broadly to any cordage material, and "twine" indicates a much smaller diameter, typically used for lighter tasks. Recognizing the correct terminology helps in ensuring proper usage and safety at sea.