SOS is an international distress signal used to communicate an urgent need for help or assistance, especially in emergency situations. It is often transmitted via Morse code or other forms of communication, such as spoken word or radio transmissions. The term "SOS" itself does not stand for any specific words, but it has come to be associated with the phrase "Save Our Souls" or "Save Our Ship."
The distress signal SOS is recognized globally and universally understood as a call for immediate assistance, regardless of cultural or language barriers. It was originally chosen due to its simplicity and ease of transmission, as it consists of three short signals, followed by three long signals, and then three short signals again, in Morse code. This distinctive pattern is easily distinguishable and can be transmitted repeatedly to ensure it gets attention.
The SOS signal is typically used in life-threatening situations, such as when a person, a group of individuals, or a vessel is in imminent danger or facing a life-or-death situation. It is commonly employed by ships, aircraft, and adventurers, but can also be used in other emergency scenarios, such as during natural disasters or when someone is lost or trapped in a remote area.
When SOS is received or witnessed, it is understood as a call for immediate action, signaling the need for rescue operations, medical aid, or any necessary assistance that can potentially save lives or alleviate the dire situation at hand.
