a substitute: We've got a sub in English this week because our teacher's home with the flu.
a submarine sandwich.
a submissive in a BDSM sexual encounter or relationship.
British. an advance against one's wages, especially one granted as a subsistence allowance.
Photography. a substratum.
to act as a substitute for another.
to act as the submissive partner in a BDSM sexual encounter or relationship.
Photography. to coat (a film or plate) with a substratum.
Other definitions for SUB (2 of 4)
supplemental unemployment benefits.
Other definitions for sub- (3 of 4)
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).
a prefix indicating a basic compound: subacetate; subcarbonate; subnitrate.
a prefix indicating that the element is present in a relatively small proportion, i.e., in a low oxidation state: subchloride; suboxide.
Other definitions for sub. (4 of 4)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use sub in a sentence
Both were on the bench in the final minutes as Brooks let his subs finish the game.The Wizards’ defense again lets them down in loss at home to Raptors | Ava Wallace | February 11, 2021 | Washington Post
In the tight environments of a ship or sub, wire makes more sense.This huge Xerox printer can create metal parts for the US Navy | Rob Verger | February 4, 2021 | Popular-Science
In a small kitchen and seating area, the market’s specialties are sub sandwiches, hand-dipped ice cream and hamburgers.Winning $730 million Powerball ticket sold in Maryland | Dana Hedgpeth | January 21, 2021 | Washington Post
A tighter meter will turn into more subs, even when the conversion rate takes a bit of a hit.‘More is more’: News publishers dial up the marketing heat on their subscription products | Max Willens | November 12, 2020 | Digiday
You just go through the list and so many of those positions, they may not be the same as a teacher, but to someone those are critical positions and are really hard to bring in a sub.‘One More Hugely Disruptive Thing’: Teachers to Leave Mid-Year Under Retirement Deal | Ashly McGlone | November 5, 2020 | Voice of San Diego
On the show, she was the epitome of Marilyn Monroe hotness, but subbed loud belches for breathy coos—and then laughed about it.Jenny McCarthy Twerks Out a Stellar ‘The View’ Debut | Kevin Fallon | September 9, 2013 | THE DAILY BEAST
Just as I'm finishing this post, they subbed out Greenland with: "Romney, Cameron Engage in Olympic Games Tiff."The Alternative Universe Where Mitt Romney Is A Cool Guy | Michael Tomasky | July 26, 2012 | THE DAILY BEAST
So when I went ashore with a couple of dollars I'd subbed from the skipper, I didn't want much to upset me.
Bustling off in search of Irma, Jerry accosted her with: Who subbed for me to-day at the nursery?Marjorie Dean High School Senior | Pauline Lester
That day she was ill, Sue Mason subbed for her; and she probably would again.The Mystery of Arnold Hall | Helen M. Persons
He subbed as ship's cook when things were slow in his specialty.Contamination Crew | Alan Edward Nourse
Course, we was only gettin' our ten per cent., and from some we'd subbed out not even that.The House of Torchy | Sewell Ford
British Dictionary definitions for sub (1 of 3)
(intr) to serve as a substitute
(intr) informal to act as a substitute (for)
British informal to grant or receive (an advance payment of wages or salary)
(tr) informal short for subedit
(tr) photog to apply a substratum to (a film or plate base)
British Dictionary definitions for sub- (2 of 3)
situated under or beneath: subterranean
secondary in rank; subordinate: subeditor
falling short of; less than or imperfectly: subarctic; subhuman
forming a subdivision or subordinate part of a whole: subcommittee
indicating that a compound contains a relatively small proportion of a specified element: suboxide
indicating that a salt is basic salt: subacetate
British Dictionary definitions for sub. (3 of 3)
subito (in music)
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-
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.