Its near enough to a sphere, but to be more accurate it is a squashed sphere, or a spheroid (an oblate spheroid).
The shape of Venus is a sphere.
The "topography" of Venus is the three dimensional shape of the surface of Venus.
Sphere
If you mean the shape of the orbit, it's an ellipse.
an oval
Venus Looks Like a Hot Planet, Just Its Regular Shape Is Seen Though.
There are two planets with an almost perfectly spherical shape. They are Mercury and Venus.
An oblate spheroid. As planets go, Venus is almost perfectly spherical. Its "oblateness" is nearly zero.
Venus is nearly a perfect sphere. It rotates very slowly, but it does rotate. That means it does have an axis of rotation.
Venus de Milo
It is small with mouths that can snap closed in less than a second
It is small with mouths that can snap closed in less than a second