usage: 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"
Verb
1. unite, unify, join, fall in, get together
usage: act in concert or unite in a common purpose or belief
2. unify, unite, merge, integrate
usage: become one; "Germany unified officially in 1990"; "the cells merge"
3. unite, combine, have, feature
usage: have or possess in combination; "she unites charm with a good business sense"
4. connect, link, link up, join, unite
usage: be or become joined or united or linked; "The two streets connect to become a highway"; "Our paths joined"; "The travelers linked up again at the airport"
5. unite, unify, change, alter, modify
usage: bring together for a common purpose or action or ideology or in a shared situation; "the Democratic Patry platform united several splinter groups"