Clue: Certain S O S
We have 1 answer for the clue Certain S O S. See the results below.
Possible Answers:
Related Clues:
- Distress signal
 - Warning fire
 - Alerting light
 - Broken-down motorist's signal
 - Car trunk item, maybe
 - Boater's S O S
 - Emergency light
 - Emergency equipment
 - "Breakdown ahead" warning
 - Bell-bottom feature
 
Last Seen In:
- New York Times - August 09, 2018
 - New York Times - November 18, 2012
 
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