• enPR: sŭb, IPA: /sʌb/
• (Northern England, Ireland) IPA: /sʊb/

• Shortened form of any of various words beginning with sub-.
• (lend a person money) From subsidize.

sub (plural subs)

1. Abbreviation of submarine
2. Short for submarine sandwich.: a sandwich made on a long bun.

   We can get subs at that deli.

3. (nautical) Clipping of submersible
4. (informal) Clipping of substitute, often in sports or teaching.

   With the score 4 to 1, they brought in subs.

   She worked as a sub until she got her teaching certificate.

   • 1930, Boy's Live, Philip Scruggs, There Can Be Victory, page 20 ↗:

     At any other school you would be playing varsity, and Wallace has you pigeon-holed on the subs." "Maybe he has his reasons," Jim replied. "And he hasn't pigeon-holed me on the subs yet — not this season.

5. (British, informal, often in plural) Clipping of subscription
6. (Internet, informal) Clipping of subtitle

   I've just noticed a mistake in the subs for this film.

7. (computing, programming) Clipping of subroutine
   • 2002, Nathan Patwardhan, Ellen Siever, Stephen Spainhour, Perl in a nutshell:

     The default accessor can be overridden by declaring a sub of the same name in the package.

   • 2004, P. K. McBride, Introductory Visual Basic.NET, page 49:

     So far, all the subs and functions that we have used have been those built into the system, or those written to handle events from controls […]

8. (colloquial) Clipping of subeditor
9. (colloquial) Clipping of subcontractor
10. (slang) Clipping of subwoofer
11. (publishing, colloquial) Clipping of submission (of a work for publication)
12. (BDSM, informal) Clipping of submissive
13. (colloquial, dated) Clipping of subordinate
14. (colloquial, dated) Clipping of subaltern
    • 1911, J. Milton Hayes, The Green Eye of the Yellow God:

      He was known as 'Mad Carew' by the subs at Khatmandu,
      He was hotter than they felt inclined to tell;
      But for all his foolish pranks, he was worshipped in the ranks,
      And the Colonel's daughter smiled on him as well.

15. (colloquial, internet) Clipping of subscription (or (by extension) a subscriber) to an online channel or feed.

    I'm totally stoked; just got 10 new subs after my last video.

16. (colloquial) Short for subsistence money
17. (internet slang) Short for subreddit.

• (submarine sandwich) submarine, submarine sandwich; grinder, hero, hero sandwich, hoagie, po' boy, spuckie, torpedo, wedge

• German: U-Boot, (nuke) Atom-U-Boot
• Italian: sottomarino

• French: sandwich sous-marin
• Russian: субмарина-сэндвич

sub (subs, present participle subbing; simple past and past participle subbed)

1. (US, informal) To substitute for.
2. (US, informal) To work as a substitute teacher, especially in primary and secondary education.
3. (British, informal, football) To replace (a player) with a substitute.

   He never really made a contribution to the match, so it was no surprise when he was subbed at half time.

4. (British, informal, football, less common, often as "sub on") To bring on (a player) as a substitute.

   He was subbed on half way through the second half, and scored within minutes.

5. (British) To perform the work of a subeditor or copy editor; to subedit.
6. (slang, Internet, transitive) To subtitle (usually a film or television program).
7. (UK, slang, transitive) To lend (a person) money.
8. (slang, intransitive) To subscribe.
9. (BDSM) To take a submissive role.
   • 2012, Alicia White, Jessica's Breakdown, page 53:

     You've never subbed before. Jessica will be expecting a man on stage that follows orders and enjoys what she's going to be doing. Do you want to be spanked? Possibly whipped?

From .

1. Under.

sub (subs, present participle subbing; simple past and past participle subbed)

1. To coat with a layer of adhering material; to planarize by means of such a coating.
2. (microscopy) To prepare (a slide) with a layer of transparent substance to support and/or fix the sample.
   • 1997, Marina A. Lynch, S. M. O'Mara (editors), Ali D. Hames, D. Rickwood (series editors), Neuroscience Labfax, [http://books.google.com/books?id=9zAqQC52WLAC&pg=PA166&dq=%22subbing|subbed%22&hl=en&ei=KlJ7Tv6sFcqtiAes2pAy&sa=X&oi=book_result&ct=result&resnum=6&sqi=2&ved=0CEMQ6AEwBQ#v=onepage&q=%22subbing|subbed%22&f=false page 166],

     Ensure that gloves are worn when handling subbed slides. Although the following protocol describes subbing with gelatin, slides may also be coated with either 3-(triethoxysilyl-)propylamine (TESPA) or poly-L-lysine for in situ hybridization.