Menhirs are large standing stones that have been erected and used for various purposes throughout history. These ancient monuments have always fascinated people due to their size and mystery. The term "menhir" originates from the Breton language, but there are many synonyms for these standing stones. Some common synonyms include standing stones, monoliths, megaliths, obelisks, dolmens, cromlechs, and henges. These synonyms are commonly used in archaeological or historical contexts when referring to these ancient structures. While there may be subtle differences between these terms, they all refer to the same type of large, standing stone structure.