The answer to the cryptogram “geluid van een slang” (sound of a snake) is most likely SIS.
Here’s the breakdown:
- Slang: This directly translates to “snake” in Dutch.
- Geluid: This translates to “sound.”
- SIS: This is a common onomatopoeia for the hissing sound that snakes make.
While snakes can make other sounds like rattling (for rattlesnakes) or grunting, hissing is by far the most well-known sound associated with them. This makes SIS the most logical answer for the cryptogram.