gun
disk
Dodecagon
A decagon.
an Octagon
A square is a four sided shape but generically they are called Quadrilaterals.
the name of a shape with four faces is a square or rectangle.
The name of a four sided shape that looks like a kite is a diamond.
The general name for a plane shape with four sides is a quadrilateral.
FacesE.g. Faces of a cube
Such a shape probably does not have a specific name.
The name of a four sided figure (or shape) is called a Square. :)
A-flat major.