cen ‧ o ‧ taph /ˈsenətɑːf $ -tæf/ BrE AmE noun [countable]
[ Date: 1600-1700 ; Language: French ; Origin: cénotaphe , from Latin , from Greek kenotaphion , from kenos 'empty' + taphos 'tomb' ]
a ↑ monument built to remind people of soldiers, sailors etc who were killed in a war and are buried somewhere else