Definitions for "Nominal scale"
A measuring system in which the numbers used do not reflect the magnitude of the objects being measured.  The numbers serve only to label or classify, not to order in any way.
A scale in which responses are ordered only into different categories. See also categorical scale, interval scale, ordinal scale, and ratio scale.
A scale that uses groupings instead of ranking (scoring, numbering). For example, eye color could be grouped by “blue,” “brown,” or “green,” not given different numbers. Other groupings used on a nominal scale could be by diagnosis, age, sex, or race.
Keywords:  distinguish, objects, numbers
Numbers used only to distinguish among objects.
Keywords:  ranked, values, name
Values only name and cannot be ranked 22