tombstone

• POS: Noun
• HYPHEN: tomb=stone

CIDE DICTIONARY

tombstone, n. 

 A stone erected over a grave, to preserve the memory of the deceased.  [1913 Webster]

OXFORD DICTIONARY

tombstone, n. a stone standing or laid over a grave, usu. with an epitaph.

THESAURUS

tombstone

arch, barrow, boundary stone, brass, bust, cairn, cenotaph, column, cromlech, cross, cup, cyclolith, dolmen, footstone, grave, gravestone, headstone, hoarstone, inscription, ledger, marker, mausoleum, megalith, memento, memorial, memorial arch, memorial column, memorial statue, memorial stone, menhir, monolith, monument, mound, necrology, obelisk, obituary, pillar, plaque, prize, pyramid, reliquary, remembrance, ribbon, rostral column, shaft, shrine, stela, stone, stupa, tablet, testimonial, tomb, tope, trophy