A range of mountains typically refers to a series of connected peaks or hills that extend over a large area. While the term "range" is commonly used, there are various synonyms that can be used interchangeably depending on the context. For instance, a "mountain chain" or "mountain ridge" can describe a long series of mountains that run together. "Cordillera" is a term used specifically for mountain ranges in the Americas. "Massif" is a French term used for a group of mountains that share a geological origin. "Highlands" or "uplands" are used to describe elevated areas of land with mountains. All in all, these synonyms are great alternatives to enhance one's vocabulary and convey meaning.