Dolmen and Megalith

Dolmen noun - A prehistoric megalithic tomb typically having two large upright stones and a capstone.

Megalith and dolmen are semantically related. In some cases you can use "Megalith" instead a noun "Dolmen".

Megalith noun - Memorial consisting of a very large stone forming part of a prehistoric structure (especially in western Europe).

Dolmen and megalith are semantically related. You can use "Dolmen" instead a noun "Megalith".