There are 257 topologically different convex octahedra. Many of these will have no parallel faces. It can have four pairs of parallel faces.
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a octahedron has 8 faces
A truncated octahedron has 14 faces.
An octahedron has 8 sides.An octahedron is a polyhedron with eight plane faces.
Sides and faces are the same thing, and an octahedron has eight.
An octahedron has eight faces - by definition.