The most common and most likely answer to this crossword clue is the 3 letter word OSS which also is the latest solution we found used in New York Times in 2017.
CIA's forerunner crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| OSS | 100 % | 3 | 
Words with a meaning similar to the clue: CIA's forerunner
These words may or may not be a possible solution to this crosswords clue.- ancestor
 - antecedent
 - harbinger
 - herald
 - precedent
 - precursor
 - aec
 - heir
 - llb
 - omen
 - pioneers
 - prodrome
 
Crossword Answer definitions
OSS noun- (representing dialect pronunciation) Horse.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution