Learn the meaning, usage, and synonyms of the word highest , which can be an adjective, adverb, or noun. Find out how to say highest in different languages and contexts, such as music, sports, or weather. Aerial view of Mount Everest from the south. The peak rises over Lhotse, while Nuptse is the ridge on the left. This is a list of the highest mountains in the world. There are at least 109 mountains on Earth that are higher than 7,200 metres (23,622 ft) above sea level. Most of these are in central or southern Asia. It is hard to measure how tall a mountain is, so these measurements may not be exact. It is also hard to figure out if two peaks close to each other are part of the same mountain ... Learn the meaning of Highest in English, including definitions, examples, translations, and interesting facts. Explore how Highest is used in different contexts with finesentence.com. The meaning of HIGH is rising or extending upward a great distance or a distance greater than others of its kind : taller than average, usual, or expected. How to use high in a sentence. Synonym Discussion of High.