parallelogram
A trapezoid has two parallel sides.
rhombus
Trapezoid
a rectangle, which has two sets of parallel side
The name of the four-sided shape that has only one pair of parallel sides is known as a trapezoid. The other two sides are not parallel to each other. There are many other shapes with more than four sides that have one pair of parallel sides but these typically don't have special names. So assuming the question is only referring to four-sided figures, the answer is a trapezoid.
It is a shape which has two pairs of PARALLEL sides. Parallel sides - parallelogram. Get it?
A kite. It doesn't have parallel sides or it will be called as a Rhombus or a Parallelogram
A parallelogram of which a rectangle, a rhombus, and a square are subsets
Trapezium
trapezoid
A trapezium is a quadrilateral (a shape with four sides) with two of its sides parallel. It is not spelt trapezuim, but rather trapezium. Trapezium is another name for trapezoid.
A shape with 1 pair of parallel sides is called a trapezoid. Just in case you mean 2 PAIRS of parallel sides, that is a parallelogram.