In the TLs where Manifest Destiny is wholly successful and the USA eventually absorbs Canada (it joins the ARW), Mexico (wholly annexed after the MAW), Cuba (conquered before or after the ACW), the Dominican Republic (peacefully annexed after the ACW), and quite possibly other chunks of the Caribbean, Central America, and South America, which regional names would be devised by Americans to give an handy label to the various sections of their sizable country ? Several OTL ones do not make too much sense with a continental union.