decider vs determiner

decider

noun
  • A person, divinity, or authoritative text which decides. 

  • A Turing machine that halts regardless of its input. 

  • An event or action which decides the outcome of a contested matter. 

determiner

noun
  • Someone (a sentient agent) who determines; a decider of a disposition. 

  • A member of a class of words functioning in a noun phrase to identify or distinguish a referent without describing or modifying it. 

  • A dependent function in a noun phrase marking the NP 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. 

  • Something (some input factor, a nonsentient agent) that determines, or helps someone to determine, something else. 

How often have the words decider and determiner occurred in a corpus of books? (source: Google Ngram Viewer )