sub

[suhb] /sʌb/
noun
1.
a submarine.
2.
a substitute.
3.
a submarine sandwich.
See hero 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
3. See hero sandwich.

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.

1.
subordinated.
2.
subscription.
3.
substitute.
4.
suburb.
5.
suburban.
6.
subway.
Examples from the web 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
Word Origin and History for sub
n.

shortened form of substitute, 1830; the verb in this sense is from 1853. Related: Subbed; subbing. From 1917 as short for submarine (n.).

sub-

word-forming element meaning "under," from Latin preposition sub "under" (also "close to, up to, towards"), from a variant form (*(s)up-, perhaps representing *ex-upo-) of PIE root *upo- "from below," hence "turning upward, upward, up, up from under, over, beyond" (cf. Sanskrit upa "near, under, up to, on," Greek hypo "under," Gothic iup, Old Norse, Old English 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 Modern English, sometimes meaning "subordinate" (as in subcontinent, first recorded 1863) or "inferior" (a sense first attested 1963).

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.

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.)
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]


sub in Technology


Substitute

Related Abbreviations for sub

sub

  1. submarine
  2. substitute

sub.

  1. subaltern
  2. suburb
  3. suburban