SOS
noun
- a signal of distress in code (··· −−− ···) used internationally in wireless telegraphy, as by ships
- Informal any call for help
See SOS in American Heritage Dictionary 4
(ĕsˈō-ĕsˈ)
noun- The letters represented by the Morse Code signal · · · - - - · · ·, used as an international distress signal, especially by ships and aircraft.
- A call or signal for help.
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