generic vs principal

generic

adj
  • Very comprehensive; pertaining or appropriate to large classes or groups (genera) as opposed to specific instances. 

  • not having a brand name; nonproprietary in design or contents; fungible with the rest of its class. 

  • Relating to gender. 

  • Pertaining to genera of life instead of particular species thereof. 

  • specifying neither masculine nor feminine; epicene; unisex. 

  • lacking in precision, often in an evasive fashion; vague; imprecise 

  • Written so as to operate on any data type, the type required being passed as a parameter. 

  • Having coordinates that are algebraically independent over the base field. 

noun
  • A term that specifies neither male nor female. 

  • A wine that is a blend of several wines, or made from a blend of several grape varieties. 

  • A product sold under a generic name. 

principal

adj
  • Primary; most important; first level in importance. 

  • Chosen or assumed among a branch of possible values of a multi-valued function so that the function is single-valued. 

noun
  • The chief administrator of a school. 

  • A diapason, a type of organ stop on a pipe organ. 

  • The construction that gives shape and strength to a roof, generally a truss of timber or iron; or, loosely, the most important member of a piece of framing. 

  • A dancer at the highest rank within a professional dance company, particularly a ballet company. 

  • The primary participant in a crime. 

  • The first two long feathers of a hawk's wing. 

  • A security principal. 

  • A legal person that authorizes another (the agent) to act on their behalf; or on whose behalf an agent or gestor in a negotiorum gestio acts. 

  • The chief executive and chief academic officer of a university or college. 

  • The money originally invested or loaned, on which basis interest and returns are calculated. 

  • A partner or owner of a business. 

  • One of the turrets or pinnacles of waxwork and tapers with which the posts and centre of a funeral hearse were formerly crowned 

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