Wiktionary
fifty-first state
alt. (context derogatory English) A country or region regarded as under the control of the United States. n. (context derogatory English) A country or region regarded as under the control of the United States.
Usage examples of "fifty-first state".
We are sure we can continue in operation in Puerto Rico, whether it is the fifty-first state or an independent nation.
Genessee Industries, the 'watering hole,' is the fifty-first state.
Logologists established a free hospital and 'psychiatric' training centre on the island in 2046, four years before Puerto Rico became the fifty-first state.
As the fifty-first state, their country would cunningly formalize its special relationship with the United States: full partnership in tomorrow's preeminent politicoeconomic system.