official vs selector

official

noun
  • An office holder, a person holding an official position in government, sports, or other organization. 

adj
  • Discharging an office or function. 

  • Relating to an office; especially, to a subordinate executive officer or attendant. 

  • True, real, beyond doubt. 

  • Approved by authority; authorized. 

  • Of or pertaining to an office or public trust. 

  • Derived from the proper office or officer, or from the proper authority; made or communicated by virtue of authority 

  • Dubious but recognized by authorities as truth and/or canon. 

  • Listed in a national pharmacopeia. 

  • Relating to an ecclesiastical judge appointed by a bishop, chapter, archdeacon, etc., with charge of the spiritual jurisdiction. 

  • Sanctioned by the pharmacopoeia; appointed to be used in medicine; officinal. 

selector

noun
  • An administrator responsible for selecting which players will play for a side. 

  • A matching expression in a stylesheet determining which elements in the markup are affected by a style. 

  • A text string transmitted to a Gopher server, identifying the resource to be retrieved. 

  • Someone or something which selects or chooses. 

  • A person who is entitled to choose a tract of Crown land to purchase. 

  • A pointer to a structure describing a segment of memory. 

  • A disc jockey. 

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