A submarine is a watercraft that can operate underwater. The term submarine most commonly refers to large unaided vessels, however historically or more casually, submarine can also refer to medium sized or smaller vessels, (midget submarines,...

Subwoofer refers to either a woofer, or a complete loudspeaker dedicated to the reproduction of bass audio frequencies, typically from 150 Hz down to 20 Hz. In the case of a rotary woofer, it is possible to reproduce frequencies down to 1 Hz....

In computer science, a subroutine (function, method, procedure, or subprogram) is a portion of code within a larger program, which performs a specific task and can be relatively independent of the remaining code. The syntax of many programming languages...

Subscriber summary and related information.

Submarine sandwich

subeditor

subcontractor

the IATA airport code for Juanda Airport in Surabaya, Indonesia

an acronym for the Seafarers' Union of Burma

the name of the substitute character in the C0 control code set

Sub- is a prefix derived from Latin, meaning "under", "below", or "less than". The analogous Greek prefix is "hypo-". Antonym: supra. As a word, sub is an abbreviation for:

Substitute, especially a substitute teacher

Subtitle, especially in connection with anime films, and as opposed to dub

subscript, <sub></sub> is the HTML element used to format text as subscript.

the ticker symbol for Summit Bancorp of New Jersey on the New York Stock Exchange