Maritime plea (3)
I believe the answer is:
sos
(Other definitions for sos that I've seen before include "urgent appeal" , "Emergency message" , "Coded distress signal" , "Help with dots and dashes" , "Appeal for help" .)
I believe the answer is:
sos
(Other definitions for sos that I've seen before include "urgent appeal" , "Emergency message" , "Coded distress signal" , "Help with dots and dashes" , "Appeal for help" .)