unification in WordNet English dictionary

1. the act of making or becoming a single unit
   "the union of opposing factions"; "he looked forward to the unification of his family for the holidays"
   union  unification  uniting  conjugation  jointure 
   
2. an occurrence that involves the production of a union
   fusion  merger  unification 
   
3. the state of being joined or united or linked
   "there is strength in union"
   union  unification