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sub

[suhb] /sʌb/
noun
1.
a submarine.
2.
a substitute.
3.
a submarine sandwich.
4.
a subcontractor.
5.
a sublieutenant.
6.
a subordinate.
7.
a subaltern.
8.
British. an advance against one's wages, especially one granted as a subsistence allowance.
9.
Photography. a substratum.
verb (used without object), subbed, subbing.
10.
to act as a substitute for another.
verb (used with object), subbed, subbing.
11.
Photography. to coat (a film or plate) with a substratum.
Origin
by shortening of words prefixed with sub-
Regional variation note

SUB

1.
supplemental unemployment benefits.

sub-

1.
a prefix occurring originally in loanwords from Latin (subject; subtract; subvert; subsidy); on this model, freely attached to elements of any origin and used with the meaning “under,” “below,” “beneath” (subalpine; substratum), “slightly,” “imperfectly,” “nearly” (subcolumnar; subtropical), “secondary,” “subordinate” (subcommittee; subplot).
2.
Chemistry.
  1. a prefix indicating a basic compound:
    subacetate; subcarbonate; subnitrate.
  2. a prefix indicating that the element is present in a relatively small proportion, i.e., in a low oxidation state:
    subchloride; suboxide.
Also, su-, suc-, suf-, sug-, sum-, sup-, sur-, sus-.
Origin
< Latin, combining form representing sub (preposition); akin to Greek hypó; see hypo-

sub.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for sub
  • The hatch is closed, the sub is on the hook and the crane is lowering me down.
  • Grant sub award or subcontracting experience is desirable.
  • The sub then slid back into the water stern-first before finally coming to rest on the surface.
  • sub critical means that more neutrons are being absorbed or are escaping the system then are creating new fissions.
  • The anatomy of the shark-shaped sub and its closed-circuit pneumatic system.
  • Feel free to sub in quick cooking oats or light brown sugar if needed.
  • It's the same model as the sub that was sunk because of a malfunctioning toilet.
  • However, without the reactor, the sub would not have had enough power to stop itself from sinking to the bottom.
  • To shed a little light on the sub fleet, two reporters recently embarked for short cruises.
  • My boss brings in a sub during our daily meetings and chomps it right in our face.
British Dictionary definitions for sub

sub

/sʌb/
noun
1.
short for several words beginning with sub- See subaltern, subeditor, submarine, subordinate, subscription, substandard, substitute, substratum (sense 6)
2.
(Brit, informal) an advance payment of wages or salary Formal term subsistence allowance
verb subs, subbing, subbed
3.
(intransitive) to serve as a substitute
4.
(intransitive) (informal) to act as a substitute (for)
5.
(Brit, informal) to grant or receive (an advance payment of wages or salary)
6.
(transitive) (informal) short for subedit
7.
(transitive) (photog) to apply a substratum to (a film or plate base)

sub-

prefix
1.
situated under or beneath subterranean
2.
secondary in rank; subordinate subeditor
3.
falling short of; less than or imperfectly subarctic, subhuman
4.
forming a subdivision or subordinate part of a whole subcommittee
5.
(in chemistry)
  1. indicating that a compound contains a relatively small proportion of a specified element suboxide
  2. indicating that a salt is basic salt subacetate
Word Origin
from Latin sub

sub.

abbreviation
1.
subeditor
2.
subito (in music)
3.
subscription
4.
substitute
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 sub
sub-
prefix of L. origin meaning "under," from L. preposition sub "under" (also "close to, up to, towards"), from a variant form (*(s)up-, perhaps representing *ex-upo-) of PIE base *upo- "from below," hence "turning upward, upward, up, up from under, over, beyond" (cf. Skt. upa "near, under, up to, on," Gk. hypo "under," Goth. iup, O.N., O.E. upp "up, upward," Hittite up-zi "rises"). Used as a prefix and in various combinations. The original meaning is now obscured in many words from Latin (suggest, suspect, subject, etc.); the prefix is active in Mod. Eng., however, sometimes meaning "subordinate" (as in subcontinent, first recorded 1863) or "inferior" (a sense first attested 1963). Many such words are transparent (e.g. subcommittee, 1610) and etymologies of their root words may be found under those headings. As a word of its own, sub is first recorded 1830, as a shortened form of substitute (originally of printer's substitutes). The verb in this sense is from 1853.
Online Etymology Dictionary, © 2010 Douglas Harper
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sub in Medicine

sub- pref.

  1. Below; under; beneath: subcutaneous.

  2. Subordinate; secondary: subinfection.

  3. Subdivision: subkingdom.

  4. Less than completely or normally; nearly; almost: subfertility.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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sub in Science
sub-  
A prefix that means "underneath or lower" (as in subsoil), "a subordinate or secondary part of something else" (as in subphylum.), or "less than completely" (as in subtropical.)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang definitions & phrases for sub

sub

noun

A substitute of any sort, esp an athlete who replaces another or an athlete not on the first team (1830+)

verb

: Who'll sub for me when I go on leave? (1853+)


sub

-prefix

for forming adjectives Inferior to or imitative of what is indicated: sub–Woody Allen (1963+)


submarine sandwich

n phr,n

hero sandwich • Also hoagy, torpedo, grinder, poor boy, etc depending on the locality

[1960s+; fr the shape of the bread cut lengthwise for the sandwich]


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

sub

  1. submarine
  2. substitute

sub.

  1. subaltern
  2. suburb
  3. suburban
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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5
7
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