cenotaph
/ˈsɛnətɑːf/ /ˈsɛnətaf/
noun
1 A monument to someone buried elsewhere, especially one commemorating people who died in a war.
1.1 the Cenotaph - The war memorial in Whitehall, London, designed by Sir Edwin Lutyens and erected in 1919–20.
Origin
from Greek kenos ‘empty’ + taphos ‘tomb’.
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The Washington Monument serves as a national symbol for the USA while also being a cenotaph, of sorts. President Washinton's remains are buried at Mount Vernon, Virginia.