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SOS

1.
the letters represented by the radio telegraphic signal (· · · – – – · · ·) used, especially by ships in distress, as an internationally recognized call for help.
noun
2.
any call for help:
We sent out an SOS for more typists.
verb (used without object)
3.
to send an SOS.
Origin of SOS
1905-1910
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

so2

[soh] /soʊ/
noun, Music.
1.
sol1 .

s.o.s.

1.
(in prescriptions) if necessary.
Origin
From the Latin word sī opus sit
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for SOS
Contemporary Examples
Historical Examples
  • Fix it SOS he wouldnt have to work all the time like he does.

    Full-Back Foster

    Ralph Henry Barbour
  • No, sir, I lured this here bear in SOS I could kill him handy to where I wanted him.

    Sudden Jim Clarence Budington Kelland
  • Since hed been in the army hed got SOS he could eat anything.

    "That's me all over, Mable"

    Edward Streeter
  • An when I get a place, Ill come an bring the number, SOS you can tell him.

    In Wild Rose Time Amanda M. Douglas
  • An Ill make the boys stan roun, SOS to keep the housewelldecent!

    In Wild Rose Time Amanda M. Douglas
British Dictionary definitions for SOS

SOS

noun
1.
an internationally recognized distress signal in which the letters SOS are repeatedly spelt out, as by radio-telegraphy: used esp by ships and aircraft
2.
a message broadcast in an emergency for people otherwise unobtainable
3.
(informal) a call for help
Word Origin
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

SO

abbreviation
1.
Somalia (international car registration)

so1

/səʊ/
adverb
1.
(foll by an adjective or adverb and a correlative clause often introduced by that) to such an extent: the river is so dirty that it smells
2.
(used with a negative; it replaces the first as in an equative comparison) to the same extent as: she is not so old as you
3.
(intensifier): it's so lovely, I love you so
4.
in the state or manner expressed or implied: they're happy and will remain so
5.
(not used with a negative; foll by an auxiliary verb or do, have, or be used as main verbs) also; likewise: I can speak Spanish and so can you
6.
(informal) indeed: used to contradict a negative statement: You didn't tell the truth. I did so!
7.
(archaic) provided that
8.
and so on, and so forth, and continuing similarly
9.
just so, See just (sense 19)
10.
or so, approximately: fifty or so people came to see me
11.
quite so, I agree; exactly
12.
so be it, used to express agreement or resignation
13.
so much
  1. a certain degree or amount (of)
  2. a lot (of): it's just so much nonsense
14.
so much for
  1. no more can or need be said about
  2. used to express contempt for something that has failed: so much for your bright idea
conjunction (subordinating; often foll by that)
15.
in order (that): to die so that you might live
16.
with the consequence (that): he was late home, so that there was trouble
17.
(takes an infinitive) so as, in order (to): to slim so as to lose weight
sentence connector
18.
in consequence; hence: she wasn't needed, so she left
19.
used to introduce a sentence expressing resignation, amazement, or sarcasm: so you're publishing a book!
20.
thereupon; and then: and so we ended up in France
21.
used to introduce a sentence or clause to add emphasis: he's crazy, so he is
22.
(informal) so what!, what importance does that have?
pronoun
23.
used to substitute for a clause or sentence, which may be understood: you'll stop because I said so
adjective
24.
used with is, was, etc. factual; true: it can't be so
interjection
25.
an exclamation of agreement, surprise, etc
Usage note
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
Word Origin
Old English swā; related to Old Norse svā, Old High German sō, Dutch zoo

so2

/səʊ/
noun
1.
(music) a variant spelling of soh

so3

abbreviation
1.
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
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Word Origin and History for SOS

1910, from International Morse code letters, chosen arbitrarily as being easy to transmit and difficult to mistake. Not an initialism for "save our ship" or anything else. Won out over alternative suggestion C.Q.D., which is said to mean "come quickly, distress," or "CQ," general call for alerting other ships that a message follows, and "D" for danger. SOS is the telegraphic distress signal only; the oral equivalent is mayday.

so

adv.

Old English swa, swæ (adv., conj., pron.) "in this way," also "to that extent; so as, consequently, therefore," and purely intensive; from Proto-Germanic *swa (cf. Old Saxon, Middle Dutch, Old High German so, Old Norse sva, Danish saa, Swedish , Old Frisian sa, Dutch zo, German so "so," Gothic swa "as"), from PIE reflexive pronomial stem *swo- "so" (cf. Greek hos "as," Old Latin suad "so," Latin se "himself"), derivative of *s(w)e-, pronoun of the third person and reflexive (see idiom).

Old English swa frequently was strengthened by eall, and so also is contained in compounds as, also, such. The -w- was eliminated by contraction from 12c.; cf. two, which underwent the same process but retained its spelling. As an "introductory particle" [OED] from 1590s. Used to add emphasis or contradict a negative from 1913. So in mid-20c. British slang could mean "homosexual" (adj.). So? as a term of dismissal is attested from 1886 (short for is that so?, etc.). So what as an exclamation of indifference dates from 1934. So-and-so is from 1596 meaning "something unspecified;" first recorded 1897 as a euphemistic term of abuse. Abbreviating phrase and so on is attested from 1724. So far so good is from 1721.

Online Etymology Dictionary, © 2010 Douglas Harper
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SOS in Medicine

s.o.s. abbr.
Latin 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.
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Slang definitions & phrases for SOS

SOS 1

noun

The usual tedious exaggerations, pieties, wretched food, etc

[WWII armed forces; fr same old shit]

SOS 2

noun

Chipped beef on toast or some similar food; shit on a shingle: It was commonly referred to in the service as SOS

[WWII armed forces; fr shit on a shingle]

so

Related Terms

say-so

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Idioms and Phrases with SOS
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Word Value for SOS

3
3
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