as a naval term, is variously applied to the weather, the sea-coast, cordage, navigation, &c. The weather is said to be clear when it is fair and open, as opposed to cloudy or foggy. The sea-coast is called clear when the navigation is not interrupted, or rendered dangerous by rocks, sands, or breakers, &c. It is expressed of cordage, cables, &c., when they are unembarrassed, or disentangled, so as to be ready for immediate service. It is usually opposed to foul in all these senses.