associate vs redline

associate

verb
  • To connect or join together; combine. 

  • To join as a partner, ally, or friend. 

  • To endorse. 

  • To join in or form a league, union, or association. 

  • To spend time socially; keep company. 

  • To be associative. 

  • To connect evidentially, or in the mind or imagination. 

noun
  • A companion; a comrade. 

  • One that habitually accompanies or is associated with another; an attendant circumstance. 

  • A person united with another or others in an act, enterprise, or business; a partner. 

  • One of a pair of elements of an integral domain (or a ring) such that the two elements are divisible by each other (or, equivalently, such that each one can be expressed as the product of the other with a unit). 

  • Somebody with whom one works, coworker, colleague. 

  • A member of an institution or society who is granted only partial status or privileges. 

adj
  • Joined with another or others and having lower status. 

  • Having partial status or privileges. 

  • Following or accompanying; concomitant. 

redline

noun
  • A drawing, document, etc. that has been marked for correction or modification. 

  • The maximum speed, temperature, pressure, etc., at which a device (such as the engine in a car, aircraft, etc.) is designed to operate. 

verb
  • To deny or complicate access to services (such as banking, insurance, or healthcare) to residents in specific, often racially determined, areas. 

  • To mark a drawing or document for correction or modification. 

  • To run an internal combustion engine to its maximum or maximum recommended speed. 

  • To achieve audio levels that will cause clipping (indicated by red in an audio meter). 

  • To operate a device at one or more redlines. 

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