SOS

so1 (səʊ)
—adv
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
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
	a.  a certain degree or amount (of)
	b.  a lot (of): it's just so much nonsense
14.	so much for
	a.  no more can or need be said about
	b.  used to express contempt for something that has failed: so much for your bright idea
—conj
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?
—pron
23.	used to substitute for a clause or sentence, which may be understood: you'll stop because I said so
—adj (used with is, was, etc)
24.	factual; true: it can't be so
—interj
25.	an exclamation of agreement, surprise, etc
usage  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

so

1886 (short for is that so?); so what as an exclamation of indifference dates from 1934. So-so "mediocre" is from 1530; so-and-so is from 1596 meaning "something unspecified;" first recorded 1897 as a euphemistic term of abuse.

"The adverb so at the beginning of a sentence ('So I'll pay for it!'), probably of Yiddish origin, occurs frequently in conversation." [M.Pei, "Story of English," 1952]

SOS

1910, from International Morse code letters, chosen arbitrarily as being easy to transmit and difficult to mistake. Not an acronym 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.

s.o.s. abbr.
Latin si opus sit (if needed)

so definition mod. very. (An intensifier that can appear before prepositional phrases and other selected adjectives that typically are not intensified.) : I was so toasted that I said, “I'm so out of here!”

SOS definition

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]

so Somali

So definition

(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.