Space (punctuation)

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Space (punctuation)_table_infobox_0

SpaceSpace (punctuation)_header_cell_0_1_0
In UnicodeSpace (punctuation)_header_cell_0_2_0 U+0020   SPACE (HTML   · Note: Representations here of a regular space are replaced with a no-break space)Space (punctuation)_cell_0_2_1
See alsoSpace (punctuation)_header_cell_0_3_0 U+00A0   NO-BREAK SPACE (HTML   ·  ,  )

Other types of spacesSpace (punctuation)_cell_0_3_1

In writing, a space ( ) is a blank area that separates words, sentences, syllables (in syllabification) and other written or printed glyphs (characters). Space (punctuation)_sentence_0

Conventions for spacing vary among languages, and in some languages the spacing rules are complex. Space (punctuation)_sentence_1

Typesetting uses spaces of varying length for specific purposes. Space (punctuation)_sentence_2

The typewriter, on the other hand, can accommodate only a limited number of keys. Space (punctuation)_sentence_3

Most typewriters have only one width of space, obtained by pressing the space bar. Space (punctuation)_sentence_4

Following widespread acceptance of the typewriter, some spacing and other typewriter conventions, which were based on the typewriter's mechanical limitations, have influenced professional typography and other designers of printed works. Space (punctuation)_sentence_5

Computer representation of text eliminates all mechanical and physical limitations in any sufficiently advanced character encoding environment (such as Unicode), where spaces of various widths, styles, or language characteristics (different space characters) are indicated with unique code points. Space (punctuation)_sentence_6

Whitespace characters include spaces of various widths, including all those that professional typesetters employ. Space (punctuation)_sentence_7

Use in natural languages Space (punctuation)_section_0

Between words Space (punctuation)_section_1

Main article: Word divider Space (punctuation)_sentence_8

Modern English uses a space to separate words, but not all languages follow this practice. Space (punctuation)_sentence_9

Spaces were not used to separate words in Latin until roughly 600–800 CE. Space (punctuation)_sentence_10

Ancient Hebrew and Arabic, while they did not use spacing, used word dividers partly to compensate in clarity for the lack of vowels. Space (punctuation)_sentence_11

The earliest Greek script also used interpuncts to divide words rather than spacing, although this practice was soon displaced by the scriptura continua. Space (punctuation)_sentence_12

The earliest signs of spacing between words appear in Latin, where it was used extremely rarely in some manuscripts and then altogether forgotten. Space (punctuation)_sentence_13

Word spacing was later used by Irish and Anglo-Saxon scribes. Space (punctuation)_sentence_14

The creation of the Carolingian minuscule by Alcuin of York, where it originated and then spread to the rest of world, including modern Arabic and Hebrew. Space (punctuation)_sentence_15

Indeed, the actions of these Irish and Anglo-Saxon scribes marked the dramatic shift for reading between antiquity and the modern period. Space (punctuation)_sentence_16

Spacing would become standard in Renaissance Italy and France, and then Byzantium by the end of the 16th century; then entering into the Slavic languages in Cyrillic in the 17th century, and only in modern times entering modern Sanskrit. Space (punctuation)_sentence_17

CJK languages don't use spaces when dealing with text containing mostly Chinese characters and kana. Space (punctuation)_sentence_18

In Japanese, spaces may occasionally be used to separate people's family names from given names, to denote omitted particles (especially the topic particle wa), and for certain literary or artistic effects. Space (punctuation)_sentence_19

Modern Korean however, has spaces as an essential part to its writing system, given the phonetic nature of the hangul script that requires word dividers to avoid ambiguity, as opposed to Chinese characters which are mostly very distinguishable from each other. Space (punctuation)_sentence_20

In Korean, spaces are used to separate chunks of nouns, nouns and particles, adjectives, and verbs; for certain compounds or phrases, spaces may be used or not, for example the phrase for "Republic of Korea" is usually spelled without spaces as 대한민국 rather than with a space as 대한 민국. Space (punctuation)_sentence_21

Runic texts use either an interpunct-like or a colon-like punctuation mark to separate words. Space (punctuation)_sentence_22

There are two Unicode characters dedicated for this: U+16EB ᛫ RUNIC SINGLE PUNCTUATION and U+16EC ᛬ RUNIC MULTIPLE PUNCTUATION. Space (punctuation)_sentence_23

Between sentences Space (punctuation)_section_2

Main article: Sentence spacing Space (punctuation)_sentence_24

Languages with a Latin-derived alphabet have used various methods of sentence spacing since the advent of movable type in the 15th century. Space (punctuation)_sentence_25

Space (punctuation)_unordered_list_0

  • One space (some times called French spacing, q.v.). This is a common convention in most countries that use the ISO basic Latin alphabet for published and final written work, as well as digital (World Wide Web) media. Web browsers usually do not differentiate between single and multiple spaces in source code when displaying text, unless text is given a "white-space" CSS attribute. Without this being set, collapsing strings of spaces to a single space allows HTML source code to be spaced in a more machine-readable way, at the expense of control over spacing of the rendered page.Space (punctuation)_item_0_0
  • Double space (English spacing). It is sometimes claimed that this convention stems from the use of the monospaced font on typewriters. However, instructions to use more spacing between sentences than words date back centuries, and two spaces on a typewriter was the closest approximation to typesetters' previous rules aimed at improving readability. Wider spacing continued to be used by both typesetters and typists until the Second World War, after which typesetters gradually transitioned to word spacing between sentences in published print, while typists continued the practice of using two spaces.Space (punctuation)_item_0_1
  • One widened space, typically one-and-a-third to slightly less than twice as wide as a word space. This spacing was sometimes used in typesetting before the 19th century. It has also been used in other non-typewriter typesetting systems such as the Linotype machine and the TeX system. Modern computer-based digital fonts can adjust the spacing after terminal punctuation as well, creating a space slightly wider than a standard word space.Space (punctuation)_item_0_2
  • No space. In her 2003 book Eats, Shoots & Leaves, Lynne Truss claimed that "young people" today using digital media "are now accustomed to following a full stop with a lower-case letter and no space".Space (punctuation)_item_0_3

There has been some controversy regarding the proper amount of sentence spacing in typeset material. Space (punctuation)_sentence_26

The Elements of Typographic Style states that only a single word space is required for sentence spacing. Space (punctuation)_sentence_27

Psychological studies suggest "readers benefit from having two spaces after periods." Space (punctuation)_sentence_28

Unit symbols and numbers Space (punctuation)_section_3

The International System of Units (SI) prescribes inserting a space between a number and a unit of measurement (being regarded as a multiplication sign) but never between a prefix and a base unit; a space (or a multiplication dot) should also be used between units in compound units. Space (punctuation)_sentence_29

Space (punctuation)_description_list_1

  • 5.0 cm not 5.0cm or 5.0 c mSpace (punctuation)_item_1_4
  • 45 kg not 45kg or 45 k gSpace (punctuation)_item_1_5
  • 32 °C not 32°C or 32° CSpace (punctuation)_item_1_6
  • 20 kN m or 20 kN⋅m not 20 kNm or 20 k NmSpace (punctuation)_item_1_7
  • π/2 rad not π/2rad or π / 2 radSpace (punctuation)_item_1_8
  • 50 % not 50% (Note: % is not an SI unit, and many style guides do not follow this recommendation; note that 50% is used as adjective, e.g. to express concentration as in 50% acetic acid.)Space (punctuation)_item_1_9

The only exception to this rule is the traditional symbolic notation of angles: degree (e.g., 30°), minute of arc (e.g., 22′), and second of arc (e.g., 8″). Space (punctuation)_sentence_30

The SI also prescribes the use of a space (often typographically a thin space) as a thousands separator where required. Space (punctuation)_sentence_31

Both the point and the comma are reserved as decimal markers. Space (punctuation)_sentence_32

Space (punctuation)_description_list_2

  • 1 000 000 000 000 (thin space) or 1000000 not 1,000,000 or 1.000.000Space (punctuation)_item_2_10
  • 1 000 000 000 000 (regular space which is significantly wider)Space (punctuation)_item_2_11

Sometimes a narrow non-breaking space or non-breaking space, respectively, is recommended (as in, for example, IEEE Standards and IEC standards) to avoid the separation of units and values or parts of compounds units, due to automatic line wrap and word wrap. Space (punctuation)_sentence_33

Encoding Space (punctuation)_section_4

Space (punctuation)_table_general_1

Character informationSpace (punctuation)_table_caption_1
PreviewSpace (punctuation)_header_cell_1_0_0 Space (punctuation)_header_cell_1_0_1
Unicode nameSpace (punctuation)_cell_1_1_0 SPACESpace (punctuation)_cell_1_1_1
EncodingsSpace (punctuation)_header_cell_1_2_0 decimalSpace (punctuation)_header_cell_1_2_1 hexSpace (punctuation)_header_cell_1_2_2
UnicodeSpace (punctuation)_cell_1_3_0 32Space (punctuation)_cell_1_3_1 U+0020Space (punctuation)_cell_1_3_2
UTF-8Space (punctuation)_cell_1_4_0 32Space (punctuation)_cell_1_4_1 20Space (punctuation)_cell_1_4_2
Numeric character referenceSpace (punctuation)_cell_1_5_0 Space (punctuation)_cell_1_5_1 Space (punctuation)_cell_1_5_2

Note: The above representation of a regular space is replaced with a non-breaking space for visibility. Space (punctuation)_sentence_34

In URLs, spaces are percent encoded with its ASCII/UTF-8 representation %20. Space (punctuation)_sentence_35

Types of spaces Space (punctuation)_section_5

Space (punctuation)_unordered_list_3

See also Space (punctuation)_section_6

Space (punctuation)_unordered_list_4

Credits to the contents of this page go to the authors of the corresponding Wikipedia page: (punctuation).