contact vs relationship

contact

noun
  • The act of touching physically; being in close association. 

  • The situation of being within sight of something; visual contact. 

  • The establishment of communication (with). 

  • A contact lens. 

  • The plane between two adjacent bodies of dissimilar rock. 

  • A device designed for repetitive connections. 

  • Contact juggling. 

  • A nodule designed to connect a device with something else. 

  • Someone who can be contacted, or with whom one is in communication. 

verb
  • To establish communication with something or someone. 

  • To touch; to come into physical contact with. 

relationship

noun
  • A romantic or sexual involvement. 

  • The level or degree of affinity between keys, chords and tones. 

  • The links between the x-values and y-values of ordered pairs of numbers especially coordinates. 

  • Connection or association; the condition of being related. 

  • Kinship; being related by blood or marriage. 

  • A way in which two or more people behave and are involved with each other 

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