[n] a prehistoric megalith typically having two upright stones and a capstone
cromlech
arch, barrow, beehive tomb, bone house, boundary stone, box grave, brass, burial, burial chamber, burial mound, bust, cairn, catacombs, cenotaph, charnel house, cist, cist grave, column, cromlech, cross, crypt, cup, cyclolith, deep six, dokhma, footstone,