A quadrilateral.
The general name for a plane shape with four sides is a quadrilateral.
parallelogram
Square
A two-dimensional shape with one curved side and four straight sides can be created, but there is not specific name for such a shape.
A trapezoid has two parallel sides.
rhombus
chevron
A quadrilateral is a shape with four straight sides. There are no curved sides in a quadrilateral.
. square, .rectangle, A name for any four sided shape is a quadrilateral..
A pyramid.
Trapezoid
I cannot think of any 2-d shape. The 3-d shape with four faces is a tetrahedron.