Answer: headstones

AnswerCrossword Clue
HEADSTONESGrave accents?
HEADSTONESThey may say 'R.I.P.'
headstonesA slab of stone set up at the head of a grave, typically inscribed with the name of the dead person
headstonesHEADSTONE, the principal stone in a foundation; the chief or corner stone