Clue: About a billion years
We have 1 possible answer for the clue About a billion years which appears 1 time in our database.
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Related Clues:
- Geologic time unit
- 365 billion days, in astronomy
- Several eras
- It's quite a stretch
- Oodles of time
- Incredibly long time
- Proterozoic or Archeozoic, e.g.
- Period of many years
- Extremely long time
- String of periods
- ... and another
- Very, very long time
- Waiting time at the motor vehicle bureau, seemingly
- Considerable stretch
- A looooong time