conjugation vs union

conjugation

noun
  • The coming together of things; union. 

  • A system of delocalized orbitals consisting of alternating single bonds and double bonds 

  • The temporary fusion of organisms, especially as part of sexual reproduction 

  • The act or process of conjugating a verb. 

  • The product of that act: the conjugated forms of a verb, collected into a list or recitation. 

  • Sexual relations within marriage 

  • In some languages, one of several classifications of verbs according to what inflections they take. 

  • A mapping sending x to gxg⁻¹, where g and x are elements of a group; inner automorphism 

  • A function which negates the non-real part of a complex or hypercomplex number; complex conjugation 

union

noun
  • The act of uniting or joining two or more things into one. 

  • An affiliation of several parishes for joint support and management of their poor; also the jointly-owned workhouse. 

  • That which is united, or made one; something formed by a combination or coalition of parts or members; a confederation; a consolidated body; a league. 

  • A data structure that can store any of various types of item, but only one at a time. 

  • A trade union; a workers' union. 

  • An association of students at a university for social and/or political purposes; also in some cases a debating body. 

  • A joint or other connection uniting parts of machinery, such as pipes. 

  • The act or state of marriage. 

  • The set containing all of the elements of two or more sets. 

  • The state of being united or joined; a state of unity or harmony. 

adj
  • Belonging to, represented by, or otherwise pertaining to a labour union. 

verb
  • To combine sets using the union operation. 

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