determiner

noun5

1. •
   Someone or something that determines, or helps to determine, something else.
2. •
   A member of a class of words functioning in a noun phrase to identify or distinguish a referent without describing or modifying it.

   • Definite articles, indefinite articles, and cardinal numbers acting as quantifiers are types of determiners.
3. •
   A factor that defines something, or one among several that define it.

   • In quality management, the determiners of quality sometimes differ across use cases.
4. •
   Someone or something (especially a sentient agent) that determines; a decider of a disposition.

   • He is the determiner [usually referring to God (in theological contexts) and job roles (in administrative contexts)]
   • Who is the determiner? [administratively or theologically]
5. •
   A dependent function in a noun phrase that marks it as definite or indefinite. This function is usually filled by words in the determinative class but may be filled by other elements such as a genitive pronoun.

   • In the sentence "Many people voted for him," the word many is a determiner.