qualifier

noun4

1. •
   A preliminary stage of a competition.
2. •
   One who qualifies for something, especially a contestant who qualifies for a stage in a competition.
3. •
   A word or phrase, such as an adjective or adverb, that describes or characterizes another word or phrase, such as a noun or verb; one that adds or subtracts attributes to another.
4. •
   A marker that qualifies or modifies another code element.

   • The qualifier const may be prefixed to any declaration, and specifies that the value to which the data object is initialised cannot subsequently be changed. — 2012