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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
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

s.o.s.

1.
(in prescriptions) if necessary.
Origin
< Latin sī opus sit

so2

[soh] /soʊ/
noun, Music.
1.
sol1 .
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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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

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

SO

abbreviation
1.
Somalia (international car registration)
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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SOS in Technology


1. Scheme Object System.
2. An infamously losing text editor. Once, back in the 1960s, when a text editor was needed for the PDP-6, a hacker crufted together a quick-and-dirty "stopgap editor" to be used until a better one was written. Unfortunately, the old one was never really discarded when new ones (in particular, TECO) came along. SOS is a descendant ("Son of Stopgap") of that editor, and many PDP-10 users gained the dubious pleasure of its acquaintance. Since then other programs similar in style to SOS have been written, notably the early font editor BILOS /bye'lohs/, the Brother-In-Law Of Stopgap (the alternate expansion "Bastard Issue, Loins of Stopgap" has been proposed).
3. The PDP-10 instruction to decrease a value. Oppose AOS.
[Jargon File]

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Related Abbreviations for SOS

SOS

  1. a signal of distress in Morse code
  2. chipped beef on toast (from "shit on a shingle")
  3. same old shit
  4. Somalia-shilling

so

Somali

SO

  1. seller's option
  2. significant other
  3. Somalia (international vehicle ID)
  4. strikeout
  5. symphony orchestra

s.o.s.

Latin si opus sit (if needed)
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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SOS in the Bible

(Nubian, Sabako), an Ethiopian king who brought Egypt under his sway. He was bribed by Hoshea to help him against the Assyrian monarch Shalmaneser (2 Kings 17:4). This was a return to the policy that had been successful in the reign of Jeroboam I.

Easton's 1897 Bible Dictionary
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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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