Pentagram has 2 different meanings across 1 category:
Noun
a star with 5 points; formed by 5 straight lines between the vertices of a pentagon and enclosing another pentagon
The shape of a five-pointed star constructed of five intersecting lines meeting at the vertices, such that a central pentagon and five surrounding isosceles triangles are formed; often with magical connotations; a 5/2 (or 5/3) star polygon.