If a word follows a certain rule it is called a RanchWord™. Here are some examples:
RanchWords™,Not RanchWords™ AMUSED,PLEASED ARREST,DETAIN SHORTEST,TALLEST DEFERRED,DENIED ATOMS,MOLECULES THERMOMETERS,BAROMETERS FOOT,ANKLE FARM,RANCH SOUTHEAST,NORTHWEST
What is the rule to tell whether a word is a RanchWord™ or not? Why are they called RanchWords™, especially since "Ranch" ISN'T one?
(Note that each word can be tested for whether it is a RanchWord™ on its own, without looking at any of the other words in the list of examples.)