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A full stop or period, also called a full point, is the punctuation mark commonly placed at the end of several different types of sentences in English and several other languages. A period consists of a small dot placed at the end of a line of text, thus: "." (sans quotes).
The term full stop is generally differentiated from that of period in contexts where both might be used by the fact that a full stop is specifically referential of a delimiting punctuation, while a period involves any appropriately sized and placed dot in English language text, to include indicating abbreviation, but excluding certain special uses of dots at the bottom of a line of text like ellipses.
The term full stop is also used, vernacularly, to terminate a phrase or thought with finality and emphasis, as in "I told him I was leaving him, full stop." The term period is used in the same sense in North America. The British Prime Minister Tony Blair, however used the term 'period' in an answer in response to a question over the UK's EU budgetary rebate during Prime Minister's Question Time in the UK Parliament on 8 June 2005: "Will the Prime Minister tell us if the UK rebate is negotiable? The Prime Minister: The UK rebate will remain and we will not negotiate it away. Period". (from Hansard)
Abbreviations
The period is also used after abbreviations, such as Mr., Dr., Mrs., Ms. If the abbreviation is ending a declaratory sentence a second period is not needed (e.g. My name is Phil Simpson M.D.) but in the case of an interogative or exclamatory sentence a question or exclamation mark is needed. In the UK, abbreviations are sometimes not followed by a full stop, although this practice is not universally followed.
Decimal point
The same glyph is very often used, rather than a mid-line point, as a decimal point (or dot) in English-speaking countries. For example:
- 3.14159
For more on this use see Decimal separator.
Spacing after full stop
In typewritten texts and other documents printed in uniform-width fonts, there is a convention among laymen that two spaces are placed after the full stop (along with the other sentence enders: question mark and exclamation mark), as opposed to the single space used after other punctuation symbols.
In modern American English typographical usage, debate has arisen around the proper number of trailing spaces after a full stop to separate sentences within a paragraph. Whereas two spaces are still regarded by many outside the publishing industry to be the better usage for monospace typefaces, the awkwardness that most keyboards and word-processing software have in representing correctly the 1.5 spaces that had previously become standard for typographically proportional (non-monospace) fonts has led to some confusion about how to render the space between sentences using only word-processing tools. Many descriptivists support the notion that a single space after a full stop should be considered standard because it has been the norm in mainstream publishing for many decades. Many prescriptivists, meanwhile, adhere to the earlier, and in some ways more practically useful, use of two spaces to make the separation of sentences more salient than separation of elements within sentences. Some, however, accept that in modern word-processing the single space is better because two spaces may stretch inordinately when full justification is applied. Additionally, many computer typefaces are designed proportionately to alleviate the need for the double space. Most modern typesetters, designers, and desktop publishers use only one space after a period as do all mainstream publishers of books and journals.
With the advent of standardized HTML for rendering webpages, the broader distinction between full stop spacing and internal spacing in a sentence has become largely moot on the World Wide Web. Standardized HTML treats additional whitespace after the first space as immaterial, and ignores it when rendering the page. A common workaround for this is the use of to represent extra spaces, and is done automatically by some WYSIWYG editors.
Chinese full stop
The Chinese full stop is a circular symbol: "。". It is used when separating two sentences.
In Chinese, the partition sign "·" (間隔號 jiāngéhào) is used to separate the given name and the family name of Westerners, or unsinicized or desinicized minority Chinese ethnic peoples, for example, 威廉·莎士比亞 (Weilian·Shashibiya) is the transliteration of "William Shakespeare", and the partition sign is inserted in between the characters of "William" and those of "Shakespeare". The Chinese language, like many others, does not use space or punctuation to define word boundaries when writing native words. The Chinese partition sign is also used to separate book title and chapter title when they are mentioned consecutively (with book title first, then chapter).
Computing use
In computing, it is often used as a delimiter, also called "dot", for example in DNS lookups and file names. For example:
- www.example.com
In computer programming, the full stop corresponds to Unicode and ASCII character 46, or 0x2E.
See dot for other dots or periods
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