Crossword clues for Key to hieroglyphics. 7 lettersAnswerClueROSETTA___ Stone (hieroglyphic key)ROSETTA__ stone (hieroglyphics key)ROSETTA___ stone (hieroglyphics key)ROSETTAKey to hieroglyphics.ROSETTA___ Stone (key to deciphering Egyptian hieroglyphs)THEROSETTASTONEHieroglyphics keyROSETTASTONEKey to deciphering Egyptian hieroglyphics