Anagrams of: UPERPRO_

• President.

• A form of croquet using short-handled mallets, and played on a hard surface

• a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States

• of or relating to the null set (a set with no members)

• a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential

• a mathematical element that when added to another number yields the same number

• the point on a scale from which positive or negative numerical quantities can be measured

• the sight setting that will cause a projectile to hit the center of the target with no wind blowing

• indicating the absence of any or all units under consideration

• having no measurable or otherwise determinable value

• indicating an initial point or origin

• adjust (an instrument or device) to zero value

• adjust (as by firing under test conditions) the zero of (a gun)

• funnel-shaped receptacle; contents pass by gravity into a receptacle below

• someone who hops

• a machine used for picking hops

• terrestrial plant-eating insect with hind legs adapted for leaping

• (baseball) a hit that travels along the ground

• a collection of things (goods or works of art etc.) for public display

• small farmers and tenants

• offensive terms for the practices and rituals of the Roman Catholic Church

• a strap from the back of a saddle passing under the horse's tail; prevents saddle from slipping forward