as a naval term, is variously applied to the weather, the sea-coasts, 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.