Sailor's distress signal (3)
I believe the answer is:
sos
(Other definitions for sos that I've seen before include "plea" , "Appeal for help" , "Emergency message" , "International distress code" , "Coded distress signal" .)
I believe the answer is:
sos
(Other definitions for sos that I've seen before include "plea" , "Appeal for help" , "Emergency message" , "International distress code" , "Coded distress signal" .)