Олий ва ўрта махсус таълим вазирлиги фарғона давлат университети

Periods (full stops) and spaces

A period (full stop) is sometimes written after an abbreviated word, but there are exceptions and a general lack of consensus about when this should happen. There is some confusion over the strict distinction between an abbreviation (a word shortened by omission of its end part) — requiring a full point (or full stop or period) — and a contraction (a word or compound shortened by omission of a middle part) — which does not need a full point or period. American English usage is less strict about this distinction and thus more likely to conclude a contraction, e.g., Jr. for "Junior" with a period. In British English, according to Hart's Rules, the general rule is that abbreviations terminate with a full stop (period), whereas contractions do not.:p167

Example	Category	Short form	Source
Doctor	Contraction	Dr	D–r
Professor	Abbreviation	Prof.	Prof...
The Reverend	Contraction (or Abbreviation)	Revd (or Rev.)	Rev–d
The Right Honourable	Contraction and Abbreviation	Rt Hon.	R–t Hon...

In American English, the period is usually added if the abbreviation might otherwise be interpreted as a word, but some American writers do not use a period here. Sometimes, periods are used for certain initialisms but not others; a notable instance in American English is to write United States, European Union, and United Nations as U.S., EU, and UN respectively. A third standard removes the full stops from all abbreviations (both "Saint" and "Street" become "St"). The U.S. Manual on Uniform Traffic Control Devices advises that periods should not be used with abbreviations on road signs, except for cardinal directions as part of a destination name. (For example, "Northwest Blvd", "W. Jefferson", and "PED XING" all follow this recommendation.) Acronyms that were originally capitalized (with or without periods) but have since entered the vocabulary as generic words are no longer abbreviated with capital letters nor with any periods. Examples are sonar, radar, lidar, laser, snafu, and scuba. Spaces are generally not used between single letter abbreviations of words in the same phrase, so one almost never encounters "U. S.". When an abbreviation appears at the end of a sentence, use only one period: The capital of the United States is Washington, D.C.

Abbreviation
Acronym
Initialism
Contraction

3. 
   True or false statements. Check yourself how you know the English abbreviations.