juncture vs unification

juncture

noun
  • A place where things join, a junction. 

  • A critical moment in time. 

  • The manner of moving (transition) or mode of relationship between two consecutive sounds; a suprasegmental phonemic cue, by which a listener can distinguish between two otherwise identical sequences of sounds that have different meanings. 

unification

noun
  • The state of being unified. 

  • Given two terms, their join with respect to a specialisation order. 

  • The act of unifying. 

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