Dictionary.com

sub

[ suhb ]
/ sʌb /
Informal.
Save This Word!

noun
verb (used without object), subbed, sub·bing.
to act as a substitute for another.
verb (used with object), subbed, sub·bing.
Photography. to coat (a film or plate) with a substratum.
QUIZ
THINGAMABOB OR THINGUMMY: CAN YOU DISTINGUISH BETWEEN THE US AND UK TERMS IN THIS QUIZ?
Do you know the difference between everyday US and UK terminology? Test yourself with this quiz on words that differ across the Atlantic.
Question 1 of 7
In the UK, COTTON CANDY is more commonly known as…

Origin of sub

By shortening of words prefixed with sub-

regional variations of sub

4. See hero sandwich.

Other definitions for sub (2 of 4)

SUB

abbreviation
supplemental unemployment benefits.

Other definitions for sub (3 of 4)

sub-

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).
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 of sub-

<Latin, combining form representing sub (preposition); akin to Greek hypó;see hypo-

Other definitions for sub (4 of 4)

sub.

abbreviation
subordinated.
subscription.
substitute.
suburb.
suburban.
subway.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use sub in a sentence

British Dictionary definitions for sub (1 of 3)

sub
/ (sʌb) /

noun
short for several words beginning with sub-See subaltern, subeditor, submarine, subordinate, subscription, substandard, substitute, substratum (def. 6)
British informal an advance payment of wages or salaryFormal term: subsistence allowance
verb subs, subbing or subbed

British Dictionary definitions for sub (2 of 3)

sub-

prefix
situated under or beneathsubterranean
secondary in rank; subordinatesubeditor
falling short of; less than or imperfectlysubarctic; subhuman
forming a subdivision or subordinate part of a wholesubcommittee
(in chemistry)
  1. indicating that a compound contains a relatively small proportion of a specified elementsuboxide
  2. indicating that a salt is basic saltsubacetate

Word Origin for sub-

from Latin sub

British Dictionary definitions for sub (3 of 3)

sub.

abbreviation for
subeditor
subito (in music)
subscription
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

Scientific definitions for sub

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK