Possible Questions:
- Long time
- Ages and ages
- Long, long time
- Very long time
- Ages
- A long time
- Periods
- Many millennia
- Seemingly forever
- Time periods
- Many moons
- Years and years
- A long, long time
- Forever and a day
- Countless years
- Important times
- Many, many moons
- Quite a while
- Long stretch
- Years on end
- Eternity
- Untold centuries
- Quite some time
- Geologic periods
- Billions of years
- Forever
- Ages upon ages
- Big times
- Really long time
- Almost forever
- Long stretches
- Long periods of time
- Vast stretches of time
- Eternities
- A dog's age
- Geological periods
- A very long time
- Many, many years
- Forever, it seems
- Forever and ever
- Time on end
- Quite a long time
- Awfully long time
- A really long time
- Time spans
- Time divisions
- Long times
- Long periods
- Extremely long time
- Years and years and years
- Many ages
- Forever, seemingly
- Time immemorial
- Seeming eternity
- Periods of time
- Millions of years
- Great times
- Many eras
- Stretch of history
- Countless centuries
- Countless ages
- An eternity
- Time out of mind
- Many, many millennia
- Many years
- Infinite time
- Geological times
- Geological time periods
- Astronomical periods
- Almost an eternity
- Ages on end
- Zillions of years
- Long times to wait
- From here to eternity
- Eternity, seemingly
- Eras upon eras
- Centuries and centuries
- Billions of years, geologically
- Almost eternity
- Ages and ages and ages
- A seeming eternity
- Tons of time
- Millennia
- Long, long times
- Long time to wait
- Long long time
- Geologic divisions
- Thousands of years
- They last a long time
- Many millenniums
- Lots of time
- Just about forever
- Incalculable amount of time
- Geologic time periods
- Geologic span
- Extremely long time frames
- A long time to wait
- Years upon years
- Stretches of history
- Spans of history
- Practically forever
- One billion years, geologically
- Many centuries
- Lo-o-ong time
- Immeasurable time
- Hundreds of centuries
- Geologic time spans
- Geologic time divisions
- Centuries of centuries
- Ages upon ages of time
- Very long stretches
- Units on the geologic time scale
- Units of time
- Units of geologic time
- Thousands of centuries
- They seem to last forever
- Millennia on end
- Many lifetimes
- Mammoth time units
- Major time periods
- Long, long periods
- Lengthy time units
- Kalpas
- Immeasurably long periods of time
- Immeasurable periods
- How long it takes mountains to form
- Geologists' times
- Geological divisions
- Geologic timespans
- Geologic times
- Geologic spans
- Extremely long stretches
- Evolutionary time periods
- Eternities, seemingly
- Donkey's years
- Cosmic cycles
- Billions and billions of years
- Billion-year increments
- Basically forever
- An eternity, seemingly
- A looooong time
- A long, long, long time
- A lo-o-ong time
- A kazillion years, it seems
- A billion years, geologically
- Years without end
- Very long times
- Very long spell
- Very long spans
- Very long periods of time
- Very long periods
- Vast sweep of time
- Vast periods
- Unimaginably long stretches
- Unfathomable stretches
- Tremendous spans
- Times immeasurable
- Time, seemingly, between finishing a freelance job and getting paid
- Time upon time
- Time to evolve?
- Time beyond measure
- Time and time again
- Thousands and thousands of years
- Stellar periods
- Some collars and jackets
- Segments of eternity
- Really long times
- Not just centuries
- Nigh-infinite periods
- Nearly forever
- Near-infinite timespans
- Mountains have developed over them
- Mind-boggling times
- Mind-boggling time spans
- Mind-boggling ages
- Millenniums, and more
- Many many centuries
- Major stretches
- Loooong time
- Long, long stretches
- Long periods, geologically
- Long geologic stretches
- Lengthy units of time
- L-o-n-g times
- Infinity almost
- Infinity
- Indefinitely long time periods
- Indefinitely long periods of time
- Indefinite years
- Indefinite time periods
- Inconceivably long times
- Inconceivable times
- Incalculable amounts of time
- Immense time spans
- Immeasurable times
- I-don't-know-how-long
- Huge spans
- How long it takes canyons to form
- Great time spans
- Gobs of time
- Geology class periods [subscribe to the best indie xwords today at avxwords.com]
- Geological time divisions
- Geologic stretches
- Geologic procession
- Gazillions of years
- Forever, so to speak
- Forever, figuratively
- Forever, basically
- For-EV-er
- Extremely long time periods
- Extra-long durations
- Eternities, almost
- Epochs and epochs
- Earth's age, perhaps
- Cosmic times
- Billion-year periods
- Billion-year increments, in geology
- Astronomical time periods
- Astronomical figures
- Archean and Proterozoic
- An extremely long time
- Ages that boggle the mind
- Ages of long duration
- Ages galore
- Age after age
- A lot of time
- A lot of the time?
- A considerable spell