1
: an internationally recognized signal of distress in radio code ‧ ‧ ‧ - - - ‧ ‧ ‧ used especially by ships calling for help
2
: a call or request for help or rescue

Examples of SOS in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
While not every product in the brand’s SOS collection includes hypochlorous acid (an excellent anti-acneic ingredient), the serum does. Kiana Murden, Vogue, 29 Jan. 2026 The main light comes from a 6500K bright white LED, which can cycle through multiple brightness modes, SOS mode, and a strobe. Abhimanyu Ghoshal, New Atlas, 28 Jan. 2026 Within the shelter, the hikers sent out an SOS call. Sam Gillette, PEOPLE, 27 Jan. 2026 Krispy Kreme has free 'SOS' doughnuts Leave it to Krispy Kreme to sweeten a situation. Jonathan Limehouse, USA Today, 15 Jan. 2026 See All Example Sentences for SOS

Word History

First Known Use

1910, in the meaning defined at sense 1

Time Traveler
The first known use of SOS was in 1910

Browse Nearby Words

Cite this Entry

“SOS.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/SOS. Accessed 1 Feb. 2026.

Kids Definition

SOS

noun
ˌes-(ˌ)ō-ˈes How to pronounce SOS (audio)
ˌes-ə-ˈwes
1
: an international radio code distress signal used by ships and aircraft calling for help
2
: a call for help

Medical Definition

SOS

abbreviation
if occasion require; if necessary
used in writing prescriptions
Etymology

Latin si opus sit

More from Merriam-Webster on SOS

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