A cloud? I don't think the shape has a name. Cloud-shaped, I guess? D:
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Clouds have irregular shapes and geometers do not have names for such shapes.
However, cloud shapes do fall into families and the types of clouds have been studied and classified and given names.
The related link below may be helpful.
One could not. The shape could be a rectangle.
in which shape and size a garden could be grown
A compound word that starts with shape could be shape up.
it could be any shape at all.
Not necessarily. It is a plane shape which could be horizontal.
no
It has no physicle shape. It is said that it is or could just the thought in your mind.
A shape in the night sky is a star. It could also be a circle if the moon is the shape being referred to.
No the Ark of Noah was rectangular in shape.
A circle
There could be.......
A 3 sided shape is a triangle. A 4 sided shape could be a square or rectangle.