Statue - a statue is a static figure that can be made from polystone, porcelain, plastic, PVC. Occasionally a statue will have removable limbs for re-posing options.
Action figure - a posable character typically made of plastic, PVC or die cast metal.
Model - a model is usually akin to either a statue or an action figure, except that you build it and paint it yourself.
Vehicle - typically a plastic toy, occasionally a model.
Soft toy - a teddy bear in essence, although seldom a bear these days.