Naming blender speeds

I haven't had a "blender" (one of the tall ones), for many years.  I gave mine to my brother, because I figured that a regulation Cuisinart, a "mini" Cuisinart and a little milk-shake maker gizmo, were enough for one person. 

I don't think mine had that many speeds. Chop, grate, grind, mince and shred,  sound to be for solids.  I recall that the instructions on mine cautioned not to use it without some liquid in the mix.  It was very old, and they've probably become stronger, and more versatile.

I don't see a big difference between blend, and mix.  I also see only a fine line between liquefy, and puree.  However, it's fun to have some "bells and whistles," and, surely, the manufacturers count on that in their aim to please ... and sell.