The most common and most likely answer to this crossword clue is the 3 letter word EON which also is the latest solution we found used in New York Times in 2012.
The Hadean was the first one, ending about 4 billion years ago crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters |
|---|---|---|
| EON | 100 % | 3 |
Words with a meaning similar to the clue: The Hadean was the first one, ending about 4 billion years ago
These words may or may not be a possible solution to this crosswords clue.- lower palaeolithic
- precambrian
- eon
- phanerozoic
- miocene
- cambrian
- silurian
- chickpea
- pangaea
- around
- ordovician
- triassic
Crossword Answer definitions
EON noun- Eternity.
- A period of 1,000,000,000 years.
- The longest time period used in geology.
- A long period of time.
- (usually spelled aeon or æon) A spirit being emanating from the Godhead.
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution