SOS


the letters represented by the radio telegraphic signal (· · · – – – · · ·) used, especially by ships in distress, as an internationally recognized call for help.

noun

any call for help: We sent out an SOS for more typists.

verb (used without object)

to send an SOS.

Origin of SOS

1905–10, from the Morse code alphabet, in which three dots (or short clicks) represents the letter S and three dashes (or long clicks) represents the letter O

Definition for sos (2 of 4)

Definition for sos (3 of 4)

so2
[ soh ]
/ soʊ /

noun Music.

Definition for sos (4 of 4)

s.o.s.

(in prescriptions) if necessary.

Origin of s.o.s.

From the Latin word sī opus sit
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for sos

British Dictionary definitions for sos (1 of 5)

SOS

noun

an internationally recognized distress signal in which the letters SOS are repeatedly spelt out, as by radio-telegraphy: used esp by ships and aircraft
a message broadcast in an emergency for people otherwise unobtainable
informal a call for help

Word Origin for SOS

C20: letters chosen as the simplest to transmit and receive in Morse code; by folk etymology taken to be an abbreviation for save our souls

British Dictionary definitions for sos (2 of 5)

SO

abbreviation for

Somalia (international car registration)

British Dictionary definitions for sos (3 of 5)

Word Origin for so

Old English swā; related to Old Norse svā, Old High German sō, Dutch zoo

usage for so

In formal English, so is not used as a conjunction, to indicate either purpose (he left by a back door so he could avoid photographers) or result (the project was abandoned so his services were no longer needed). In the former case to or in order to should be used instead, and in the latter case and so or and therefore would be more acceptable. The expression so therefore should not be used

British Dictionary definitions for sos (4 of 5)

so2
/ (səʊ) /

noun

music a variant spelling of soh

British Dictionary definitions for sos (5 of 5)

so3

the internet domain name for

Somalia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for sos

s.o.s.

abbr.

si opus sit (if needed)
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Idioms and Phrases with sos

so

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.