| Answer | Crossword Clue |
|---|---|
| CAIRO | City of over five million |
| CAIRENES | Over five million Egyptians |
| FINNS | Over five million Europeans |
| RIO | City of over 3 million. |
| ISLAM | Faith of five million Americans |
| quintillion | A million raised to the power of five (1030) |
| quintillions | A million raised to the power of five (1030) |
