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know1

[noh] /noʊ/
verb (used with object), knew, known, knowing.
1.
to perceive or understand as fact or truth; to apprehend clearly and with certainty:
I know the situation fully.
2.
to have established or fixed in the mind or memory:
to know a poem by heart; Do you know the way to the park from here?
3.
to be cognizant or aware of:
I know it.
4.
be acquainted with (a thing, place, person, etc.), as by sight, experience, or report:
to know the mayor.
5.
to understand from experience or attainment (usually followed by how before an infinitive):
to know how to make gingerbread.
6.
to be able to distinguish, as one from another:
to know right from wrong.
7.
Archaic. to have sexual intercourse with.
verb (used without object), knew, known, knowing.
8.
to have knowledge or clear and certain perception, as of fact or truth.
9.
to be cognizant or aware, as of some fact, circumstance, or occurrence; have information, as about something.
noun
10.
the fact or state of knowing; knowledge.
Idioms
11.
in the know, possessing inside, secret, or special information.
12.
know the ropes, Informal. to understand or be familiar with the particulars of a subject or business:
He knew the ropes better than anyone else in politics.
Origin
900
before 900; Middle English knowen, knawen, Old English gecnāwan; cognate with Old High German -cnāhan, Old Norse knā to know how, be able to; akin to Latin (g)nōvī, Greek gignṓskein. See gnostic, can1
Related forms
knower, noun
Synonyms
1. Know, comprehend, understand imply being aware of meanings. To know is to be aware of something as a fact or truth: He knows the basic facts of the subject. I know that he agrees with me. To comprehend is to know something thoroughly and to perceive its relationships to certain other ideas, facts, etc. To understand is to be fully aware not only of the meaning of something but also of its implications: I could comprehend all he said, but did not understand that he was joking.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for in the know

know

/nəʊ/
verb (mainly transitive) knows, knowing, knew (njuː), known (nəʊn)
1.
(also intransitive; may take a clause as object) to be or feel certain of the truth or accuracy of (a fact, etc)
2.
to be acquainted or familiar with: she's known him five years
3.
to have a familiarity or grasp of, as through study or experience: he knows French
4.
(also intransitive; may take a clause as object) to understand, be aware of, or perceive (facts, etc): he knows the answer now
5.
(foll by how) to be sure or aware of (how to be or do something)
6.
to experience, esp deeply: to know poverty
7.
to be intelligent, informed, or sensible enough (to do something): she knew not to go home yet
8.
(may take a clause as object) to be able to distinguish or discriminate
9.
(archaic) to have sexual intercourse with
10.
I know what, I have an idea
11.
know what's what, to know how one thing or things in general work
12.
(informal) you know, a parenthetical filler phrase used to make a pause in speaking or add slight emphasis to a statement
13.
you never know, things are uncertain
noun
14.
(informal) in the know, aware or informed
Derived Forms
knowable, adjective
knower, noun
Word Origin
Old English gecnāwan; related to Old Norse knā I can, Latin noscere to come to know
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 in the know

know

v.

Old English cnawan (class VII strong verb; past tense cneow, past participle cnawen), "to know, perceive; acknowledge, declare," from Proto-Germanic *knew- (cf. Old High German bi-chnaan, ir-chnaan "to know"), from PIE root *gno- "to know" (cf. Old Persian xšnasatiy "he shall know;" Old Church Slavonic znati, Russian znat "to know;" Latin gnoscere; Greek *gno-, as in gignoskein; Sanskrit jna- "know"). Once widespread in Germanic, this form is now retained only in English, where however it has widespread application, covering meanings that require two or more verbs in other languages (e.g. German wissen, kennen, erkennen and in part können; French connaître, savoir; Latin novisse, cognoscere; Old Church Slavonic znaja, vemi). The Anglo-Saxons used two distinct words for this, witan (see wit) and cnawan.

Meaning "to have sexual intercourse with" is attested from c.1200, from the Old Testament. To not know one's ass from one's elbow is from 1930. To know better "to have learned from experience" is from 1704. You know as a parenthetical filler is from 1712, but it has roots in 14c. To know too much (to be allowed to live, escape, etc.) is from 1872. As an expression of surprise, what do you know attested by 1914.

n.

"inside information" (as in in the know), 1883; earlier "fact of knowing" (1590s), from know (v.).

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for in the know

in the know

adjective phrase

Well informed, esp having current, advance, or confidential information: Those in the know tell me to sell (1902+)


know

Related Terms

in the know


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 in the know

in the know

Privy to special or secret information, as in Not too many people are in the know about this project. [ Late 1800s ]
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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