A pentagram (sometimes known as a pentalpha or pentangle or a star pentagon) is the shape of a five-pointed star drawn with five straight strokes. The word pentagram comes from the Greek word πεντάγραμμον (pentagrammon), from πέντε (pente), five + γραμμή (grammē), line. The word  pentacle  is sometimes used synonymously with pentagram. The word pentalpha is a learned modern (17th-century) revival of a post-classical Greek name of the shape.