CIA forerunner
The crossword clue "CIA forerunner" is answered by OSS, a 3-letter entry. Used 180 times across 32 distinct years; most recently in 2026; first recorded in 1986. It appears in 26 publications in the xd corpus. Every figure on this page comes from the pilot data itself.
The answer
OSS
3 letters. See every clue for this answer on the OSS answer page.
Used 180 times across 32 distinct years; most recently in 2026; first recorded in 1986. It appears in 26 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other clues for OSS
Every other clue in this pilot answered by OSS, most used first.
- CIA predecessor - used 105 times, most recently in 2026
Related clues
Pilot clues of the same answer length that share a word with this clue, or match its answer pattern when no word is shared. Most used first.
- Alley ___ - OOP, used 518 times
- Eggs - OVA, used 505 times
- Sphere - ORB, used 498 times
- Poem of praise - ODE, used 492 times
- Make a choice - OPT, used 399 times
- "-- the ramparts ..." - OER, used 357 times
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