megalith

/ˈmɛɡəˌlɪθ/
noun
  1. A very large stone, especially one used in ancient monuments or structures.
    • The megalith stood alone on the hill, a relic of a prehistoric culture.
    • Archaeologists studied the megalith to learn about ancient building techniques.
    • Stonehenge is made of massive megaliths arranged in a circle.
Synonyms
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