As
AS
abbr.1.  airspeed
2.  American Samoa
3.  Anglo-Saxon
4.  antisubmarine
5.  Associate in Science
 
as 1
  (ăz; əz when unstressed)adv.1.  To the same extent or degree; equally: The child sang as sweetly as a nightingale.
2.  For instance: large mammals, as the bear or lion.
3.  When taken into consideration in a specified relation or form: this definition as distinguished from the second one.
 conj.1.  To the same degree or quantity that. Often used as a correlative after so or as: You are as sweet as sugar. The situation is not so bad as you suggest.
2.  In the same manner or way that: Think as I think.
3.  At the same time that; while: slipped on the ice as I ran home.
4.  For the reason that; because: went to bed early, as I was exhausted.
5.  With the result that: He was so foolish as to lie.
6.  Though: Great as the author was, he proved a bad model. Ridiculous as it seems, the tale is true.
7.  In accordance with which or with the way in which: The hotel is quite comfortable as such establishments go. The sun is hot, as everyone knows.
8.  Informal That: I don't know as I can answer your question.
 pron.1.  That; which; who. Used after same or such: I received the same grade as you did.
2.  Chiefly Upper Southern US Who, whom, which, or that: Those as want to can come with me.
 prep.1.  In the role, capacity, or function of: acting as a mediator.
2.  In a manner similar to; the same as: On this issue they thought as one.
 Idioms:  as is Informal  Just the way it is, with no changes or modifications: bought the samovar as is from an antique dealer.
  as it were In a manner of speaking; as if such were so.
 
[Middle English, from Old English ealswā; see  also.]
Usage Note:  Your mother is just as proud as me, said the father to the child with good grades. But should he have said, 
Your mother is just as proud as I? As with similar constructions using 
than, a traditional rule states that the pronoun following 
as ... as ... constructions must be in the nominative case because 
She is just as proud as I is really a truncated version of the sentence 
She is just as proud as I am. Another way to view this situation is to say that the second 
as functions as a conjunction, not as a preposition, in these sentences. Whatever the merits of this logic, the 
as me construction is very common in speech and appears regularly in the writing of highly respected writers. Moreover, it can be argued that the second 
as is really a preposition in these constructions and so requires the objective case. There is the further objection that 
as I constructions are overly formal, and even pretentious. In short, both constructions are defensible, and both are subject to attack. The safe bet is to include the final verb to make a clause: 
She is just as proud as I am. · In many dialects, people use 
as in place of 
that in sentences like 
We are not sure as we want to go or 
It's not certain as he left. But this use of 
as is limited mostly to speaking, and it will likely seem inappropriate in formal writing. · Some nonstandard varieties of American English differ from the standard language in the form and usage of relative pronouns. Where Standard English has three relative pronouns—
who, which, and 
that—regional dialects, particularly those of the South and Midlands, allow 
as and 
what as relative pronouns: 
"They like nothing better than the job of leading off a young feller like you, as ain't never been away from home much" (Stephen Crane, 
The Red Badge of Courage). 
The car what hit him never stopped. · When 
as expresses a causal relation, it should be preceded by a comma, as in 
She won't be coming, as we didn't invite her. When 
as expresses a time relation, it is not preceded by a comma: 
She was finishing the painting as I walked into the room. When an 
as-clause begins a sentence, it may be necessary to make clear whether 
as is used to mean "because" or "at the same time that." The sentence 
As they were leaving, I walked to the door may mean either "I walked to the door because they were leaving" or "I walked to the door at the same time that they were leaving." · 
As is sometimes used after verbs like 
consider, deem, and 
account, as in 
The paintings are considered as masterpieces in their home country. The measure was deemed as unnecessary. This usage may have arisen by analogy to the long-established use of 
as after 
regard and 
esteem in standard contexts: 
We regarded her as the best writer among us. In our 2009 survey, however, more than 80 percent of the Usage Panel rejected sentences in which 
as followed 
consider in this way, including the sentence just quoted. These constructions bear the stigma of redundancy and should be avoided in careful writing. See Usage Notes at 
 because, 
 equal, 
 like2, 
 so1.
 
as 2
  (ăs)n. pl. as·ses (ăs′ēz′, ăs′ĭz) 1.  An ancient Roman coin of copper or copper alloy.
2.  An ancient Roman unit of weight equal to about one troy pound.
 
[Latin.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
as
 (æz; unstressed əz) conj (
subordinating) 
1.  (often preceded by just) while; when; at the time that: he caught me as I was leaving. 
2. in the way that: dancing as only she can. 
3. that which; what: I did as I was told. 
4. (of) which fact, event, etc (referring to the previous statement): to become wise, as we all know, is not easy. 
5. as it were in a way; so to speak; as if it were really so
6. as you were a. a military command to withdraw an order, return to the previous position, etc
b. a statement to withdraw something just said
 7.  (Military) a military command to withdraw an order, return to the previous position, etc
8. a statement to withdraw something just said
9. since; seeing that: as you're in charge here, you'd better tell me where to wait. 
10. in the same way that: he died of cancer, as his father had done. 
11. in spite of the extent to which: intelligent as you are, I suspect you will fail. 
12. for instance: capital cities, as London. 
 adv, 
conja. used correlatively before an adjective or adverb and before a noun phrase or a clause to indicate identity of extent, amount, etc: she is as heavy as her sister; she is as heavy now as she used to be. 
b. used with this sense after a noun phrase introduced by the same: she is the same height as her sister. 
 prep13. in the role of; being: as his friend, I am probably biased. 
14. as for as to with reference to: as for my past, I'm not telling you anything. 
15. as from as of formal (in expressions of time) from: fares on all routes will rise as from January 11. 
16. as if as though as it would be if: he talked as if he knew all about it. 
17. as is as it is in the existing state of affairs: as it is, I shall have difficulty finishing all this work, without any more. 
22. as was in a previous state
24. as yet up to now; so far: I have received no compensation as yet. 
 [Old English alswā likewise; see also]
as
 (æs) n1.  (Units) an ancient Roman unit of weight approximately equal to 1 pound troy (373 grams)
2.  (Currencies) the standard monetary unit and copper coin of ancient Rome
 [C17: from Latin ās unity, probably of Etruscan origin]
as
  the internet domain name for  (Computer Science) American Samoa
  
As
  symbol for  1.  (Elements & Compounds) chem arsenic
  2.  (Physical Geography) altostratus
  
AS
  abbreviation for  1.  (Peoples) Also: A.S. Anglo-Saxon
  2.  (Military) antisubmarine
  3. Australian Standards
  Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
as1
  (æz; unstressed əz)  
 
 adv.    1.  to the same degree or extent; equally:  It's not as hot today. 
   2.  for example:  spring flowers, as the tulip. 
   3.  thought or considered to be:  the square as distinct from the rectangle. 
   4.  in the manner indicated:  She sang as promised. 
 conj.    5.  to the same degree or extent that:  to run quick as a rabbit. 
   6.  in the degree, manner, etc., of or that:  Do as we do. 
   7.  at the same time that; while; when:  Pay as you enter. 
   8.  since; because:  As you are leaving last, lock the door. 
   9.  though:  Strange as it seems, it is so. 
   10.  that the result or effect was:  His voice was so loud as to make everyone stare. 
   11.  Informal. that:  I don't know as I do. 
 pron.    12.  that; who; which (usu. prec. by such or the same):  I have the same trouble as you had. 
   13.  a fact that:  She spoke the truth, as can be proved. 
 prep.    14.  in the role, function, or status of:  to act as leader. 
 Idioms:    1.  as … as, (used to express similarity or equality between one person or thing and another):  as rich as Croesus. 
   2.  as far as, to the degree or extent that:  It is an excellent plan, as far as I can tell. 
   3.  as for or to, with respect to; about; concerning:  As for staying away, I wouldn't think of it. 
   4.  as good as,  a.  equivalent to:  as good as new. 
  b.  true to; trustworthy as:  as good as his word. 
     5.  as if or though, as it would be if:  It was as if the world had come to an end. 
   6.  as is, in whatever condition something is in when offered, esp. if damaged. 
   7.  as it were, in a way; so to speak:  He became, as it were, a man without a country. 
   8.  as of, beginning on; on and after; from:  This price is effective as of June 23. 
   9.  as such,  a.  as being what is indicated; in that capacity:  An officer of the law, as such, is entitled to respect. 
  b.  in itself or in themselves:  The job, as such, does not appeal to me. 
     10.  as yet, up to the present time. 
 [before 1000; Old English 
alswā, ealswā all so (see 
also), quite so, quite as, as; c. Middle Dutch 
alse, Old High German 
alsō]
 usage: As a conjunction, one sense of 
as is “because”: 
As she was bored, Sue left the room. as also has an equally common use in the sense “while, when”: 
As the parade passed by, the crowd cheered. These two senses sometimes result in ambiguity: 
As the gates were closed, he walked away. (When? Because?) 
as… 
as is standard in both positive and negative constructions: 
as happy as a lark; not as humid today as it was yesterday. so… 
as is sometimes used in negative constructions (
not so humid as it was) and in questions (
 “What is so rare as a day in June?” ). The phrase 
as far as generally introduces a clause: 
As far as money is concerned, the council has exhausted all its resources. In some informal speech and writing, 
as far as is treated as a preposition and followed only by an object: 
As far as money, the council has exhausted all its resources. as to as a compound preposition has long been standard: 
As to your salary, that too will be reviewed. This is occasionally criticized as a vague substitute for 
about or 
concerning, which can certainly be substituted. See also 
all, farther, like.  as2
  (æs) 
 n., pl.  as•ses  (ˈæs ɪz, -iz)   1.  a copper coin of ancient Rome. 
  2.  an ancient Roman unit of weight, equal to about 12 ounces. 
[1595–1605; < Latin]
 AS
   1.  American Samoa. 
   2.  Anglo-Saxon. 
 As
 
 Chem. Symbol.  as-
  var. of 
ad- before 
 s: assert. A.S.
   1.  Anglo-Saxon. 
   2.  Associate in Science. 
 Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
as
1. used in time clausesIf something happens as something else happens, it happens while the other thing is happening.
She cried as she told her story.
The play started as I got there.
You also use as to say that something is done whenever something happens.
Parts are replaced as they grow old.
Be Careful!
Don't use 'as' simply to mean 'at the time that'. For example, don't say 'As I started work here, the pay was £20 an hour'. You say 'When I started work here, the pay was £20 an hour'.
 2. meaning 'because'As is often used to mean 'because' or 'since'.
She bought herself an iron as she felt she couldn't keep borrowing Anne's.
As he had been up since 4 a.m. he was now very tired.
 3. used with adjectivesYou can use as in front of an adjective to say how someone or something is regarded or described.
They regarded manual work as degrading.
His teachers described him as brilliant.
Be Careful!
Don't use 'as' after comparative adjectives. Don't say, for example, 'The trees are taller as the church'. You say 'The trees are taller than the church'.
She was much older than me.
 4. used in prepositional phrasesYou can also use as in prepositional phrases to say how someone or something is regarded, described, treated, or used.
Pluto was originally classified as a planet.
I treated business as a game.
I wanted to use him as an agent.
You can also use as in prepositional phrases to say what role or function someone or something has.
He worked as a clerk.
Bleach acts as an antiseptic.
 5. used in comparisonsIn writing, as is sometimes used to compare one action to another.
He looked over his shoulder as Jack had done.
She pushed him, as she had pushed her son.
Like and the way are used in a similar way.
Be Careful!
You don't usually use 'as' in front of a noun phrase when you are comparing one thing or person to another. Don't say, for example, 'She sang as a bird'. You say 'She sang like a bird'.
He swam like a fish.
I am a worker like him.
Be Careful!
However, you can make a comparison using as, an adjective or adverb, and another as. For example, you can say 'You're just as bad as your sister'.
 
like
  as  the way1. used as conjunctionsYou can use like, as, or the way as conjunctions when you are comparing one person's behaviour or appearance to another's. In the clause which follows the conjunction, the verb is usually do.
For example, you can say 'He walked to work every day, like his father had done', 'He walked to work every day, as his father had done', or 'He walked to work every day, the way his father had done'.
I never behave like she does.
They were people who spoke and thought as he did.
Start lending things, the way people did in the war.
 2. used as prepositionsLike and as can be prepositions, but their meaning is not usually the same. For example, if you do something like a particular kind of person, you do it the way that kind of person would do it, although you are not that kind of person.
We worked like slaves.
If you do something as a particular kind of person, you are that kind of person.
Over the summer she worked as a waitress.
I can only speak as a married man without children.
 Collins COBUILD English Usage © HarperCollins Publishers 1992, 2004, 2011, 2012