What context can I use each word in?
Learn when and how to use these words with these examples!
SOS
Example
The hiker sent an SOS signal using a flashlight to attract attention. [SOS: noun]
Example
The captain radioed an SOS message to the coast guard after the ship hit a reef. [SOS: noun]
mayday
Example
The pilot declared a mayday when the plane's engine failed mid-flight. [mayday: noun]
Example
The crew sent out a mayday call after the cargo ship began taking on water. [mayday: noun]
Good things to know
Which word is more common?
Mayday is more commonly used in aviation, while SOS is more commonly used in maritime emergencies. Both signals are recognized internationally and can be used in any emergency situation.
What’s the difference in the tone of formality between SOS and mayday?
Both SOS and mayday are formal signals used in emergency situations. They are recognized internationally and should only be used in life-threatening situations where immediate assistance is required.
