Sub or SUB may refer to:

Places

Juanda International Airport Juanda International Airport is an international airport, international joint-use airport located in Sedati, Sedati District, Sidoarjo Regency, Sidoarjo, Indonesia. It is now the List of the busiest airports in Indonesia, third busiest airport ...

, Surabaya, Indonesia, IATA code SUB

People

Bottom (BDSM) The terms ''top'', ''bottom'', and ''switch'' are used to describe an individual's role during a sexual act. They may more broadly denote a Identity (social science), psychological, Identity (social science), social, or sexual identity, or indica ...

, or "sub" for "submissive" * Substitute teacher

Christianity

Sub tuum praesidium ''Sub tuum præsidium'' (; ) is an ancient Christianity, Christian hymn and prayer dedicated to the Blessed Virgin Mary. The hymn enumerates her special election by God the Father and her motherhood of God the Son. It is one of the oldest known ...

, an ancient hymn and prayer dedicated to the

Blessed Virgin Mary Mary was a first-century Jewish woman of Nazareth, the wife of Saint Joseph, Joseph and the mother of Jesus. She is an important figure of Christianity, venerated under titles of Mary, mother of Jesus, various titles such as Perpetual virginity ...

Computing and technology

* , an HTML tag for

subscript A subscript or superscript is a character (such as a number or letter) that is set slightly below or above the normal line of type, respectively. It is usually smaller than the rest of the text. Subscripts appear at or below the baseline, wh ...

* SUB designates a

subroutine In computer programming, a function (also procedure, method, subroutine, routine, or subprogram) is a callable unit of software logic that has a well-defined interface and behavior and can be invoked multiple times. Callable units provide a ...

in some programming languages * SUB,

substitute character In computer data, a substitute character (␚) is a control character that is used to pad transmitted data in order to send it in blocks of fixed size, or to stand in place of a character that is recognized to be invalid, erroneous or unreprese ...

, ASCII character 26 * SUB,

subtraction Subtraction (which is signified by the minus sign, –) is one of the four Arithmetic#Arithmetic operations, arithmetic operations along with addition, multiplication and Division (mathematics), division. Subtraction is an operation that repre ...

processor command * .sub (disambiguation), several file extensions * Subeditor *

Subwoofer A subwoofer (or sub) is a loudspeaker designed to reproduce low-pitched audio frequencies, known as bass and sub-bass, that are lower in frequency than those which can be (optimally) generated by a woofer. The typical frequency range that is ...

loudspeaker

Typography

Subscript and superscript A subscript or superscript is a character (such as a number or letter) that is set slightly below or above the normal line of type, respectively. It is usually smaller than the rest of the text. Subscripts appear at or below the baseline, wh ...

Subtitle Subtitles are texts representing the contents of the audio in a film, television show, opera or other audiovisual media. Subtitles might provide a transcription or translation of spoken dialogue. Although naming conventions can vary, caption ...

Entertainment and media

* Sub (TV channel) * ''Sub'' (album), a 2000 album by Swiss industrial metal band Apollyon Sun * '' The Sub'', a 2017 American short horror film * ''Subs'' (novel), a 2011 novel by Thor Kunkel

Other uses

Seafarers' Union of Burma The Myanmar Maritime Trade Unions Federation, formerly known as Seafarers Union of Burma (SUB) is a trade union in Myanmar. It represents an estimated 20,000-30,000 workers in the international shipping industry, many of whom work on Flag of Conven ...

, or SUB *

Submarine sandwich A submarine sandwich, commonly known as a sub, is a type of American cold or hot sandwich made from a submarine roll (an elongated bread roll) that is split lengthwise and filled with meats, cheeses, vegetables, and condiments. Although "subma ...

, or hero sandwich *

Submarine A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...

, a

warship A warship or combatant ship is a naval ship that is used for naval warfare. Usually they belong to the navy branch of the armed forces of a nation, though they have also been operated by individuals, cooperatives and corporations. As well as b ...

with underwater travel capabilities. *

Submersible A submersible is an underwater vehicle which needs to be transported and supported by a larger ship, watercraft or dock, platform. This distinguishes submersibles from submarines, which are self-supporting and capable of prolonged independent ope ...

, an

underwater vehicle An underwater vehicle is any member of the class of watercraft that is intended to operate in the underwater environment, as opposed to surface vessels that only stay afloat on top of water. This article lists the types of underwater vehicle, wit ...

designed to be completely submerged or operate while submerged. *

Subnature Subnature is the undesirable by-products of urbanization, industrialization, war, abandonment, and societal collapse. The concept was coined by historian David Gissen. Subnature includes things such as smog, dust, exhaust gas, industrial smoke, s ...

concept *

Subscription The subscription business model is a business model in which a customer must pay a recurring price at regular intervals for access to a product or service. The model was pioneered by publishers of books and periodicals in the 17th century. It ...