The verb unite has 6 senses (first 2 from tagged texts)
1. (7) unite, unify -- (act in concert or unite in a common purpose or belief)
2. (7) unify, unite, merge -- (become one; "Germany unified officially in 1990"; "Will the two Koreas unify?")
3. unite, combine -- (have or possess in combination; "she unites charm with a good business sense")
4. connect, link, link up, join, unite -- (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 -- (bring together for a common purpose or action or ideology or in a shared situation; "the Democratic Patry platform united several splinter groups")