The term CONTINENT SEPARATOR can be solved by the crossword solution OCEAN, which is a five-letter word. An OCEAN is a large body of salt water that covers much of the Earth's surface and is divided into several principal areas. It is the largest of the Earth's four oceans and is the world's second-largest body of water, after the Pacific OCEAN. Oceans are important for regulating the climate and providing habitats for many species of plants and animals. They also provide resources for human activities such as fishing, transportation, and recreation.