A stone marker is an object used to mark a location or commemorate an event. The three crossword solutions for the term 'stone marker' are stele (5 letters), CAIRN (5 letters), and stela (5 letters). A stele is a tall, upright stone slab with an inscription or relief carving on it. A CAIRN is a pile of stones that is often used as a memorial or landmark. A stela is a stone slab with an inscription or relief carving on it, similar to a stele.