sub

/sʌb/

noun

1
A submarine.
2
A submarine sandwich: a sandwich made on a long bun.
“We can get subs at that deli.”
3
A substitute, often in sports.
“She worked as a sub until she got her teaching certificate.”
4
(often in plural) A subscription: a payment made for membership of a club, etc.
5
A subtitle.
“I've just noticed a mistake in the subs for this film.”
6
A subroutine (sometimes one that does not return a value, as distinguished from a function, which does).
7
A subeditor.
8
A subcontractor.
9
(BDSM) A submissive.
10
A subordinate.
11
A subaltern.
12
A 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.”
13
Subsistence money: part of a worker's wages paid before the work is finished.

1
To substitute for.
2
To work as a substitute teacher, especially in primary and secondary education.
3
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
Less commonly, and 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
To perform the work of a subeditor or copy editor; to subedit.
6
To lend.
7
To subscribe.
8
(BDSM) To take a submissive role.

1
To coat with a layer of adhering material; to planarize by means of such a coating.
2
To prepare (a slide) with a layer of transparent substance to support and/or fix the sample.

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