The most common and most likely answer to this crossword clue is the 4 letter word CCCP which also is the latest solution we found used in USA Today in 2005.
Spacecraft letters, once crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| CCCP | 100 % | 4 | 
Words with a meaning similar to the clue: Spacecraft letters, once
These words may or may not be a possible solution to this crosswords clue.- ussr
- nbc
- pilot
- probe
- tang
- footprint
- bus
- ufo
- vessel
- atlas
- mosaic
- angle
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution