Declination - a change of case and number of nouns.There are three types of decline.In addition, there heteroclite (ten nouns Wed kind that end in -mya and the words daughter the way, mother, child) and indeclinable nouns (lobby, Metro, cafes, radio, shows).
indeclinable called nouns, which in all cases shall have the same shape, I see the coat (in. N.), I admire the coats (m. P.).
indeclinable nouns:
1) words borrowed from other languages, which ends in a vowel and represent inanimate objects: cocoa depot coat, movies, purses, aloe, taxis, coffee.
2) words borrowed from other languages, which are called the representatives of both male and female, and ends in a vowel: dandy, attache impresario lady.
3) words borrowed from other languages, indicating the animals: kangaroos, chimpanzees, cockatoos;
4) foreign names female that ends with a hard consonant: Carmen, Ellen, Miss Madam, Finkelstein;
5) foreign words, which is called the geographic features: Helsinki, Baku, Calais, Toronto.
6. Russian names, which are genitive units.and many others.number: Durnovo, Khitrovo, Polish, torsion.
7. Ukrainian surnames -ko: Korolenko, Franco, Shevchenko Oleshko;
8) Abbreviations - is also indeclinable nouns examples: Germany, Moscow State University, the United Nations, Russia, the United States.
When combined indeclinable nouns with other words the form of their mortality can determine the structure of all offers (for example, in the hall stood an old dressing table (it. N.), Or at the end of adjectives that are consistent with these indeclinable nouns Maxim wrapped neck warmermufflers (tv. n)
inanimate indeclinable nouns relates generally to neuter: sweet popsicle, woolen scarves, to schedule an interview, the metropolitan subway. indeclinable noun coffee (black) refers to the masculine and the Avenue and kohlrabi -the female.
animate borrowed nouns refer to the rail. p., if they are called females (Frau, madam, Miss Lady), and m when they call animals and males (chimpanzees, entertainers, dandy, attache cockatoos).
Rhode indeclinable nouns that indicate names of geographical objects, determine the genus of the common nouns that can replace these names: Gaborone (city) - indeclinable masculine noun, Missouri (River) -feminine;
Rhode slozhnosokraschёnnyh words and acronyms most often determined by the nature of the main (reference) to decipher the words: LFK- physiotherapy - feminine, as the main word is feminine;KGB - Committee for State Security - the masculine, as the main word is masculine;BelAZ - (Belarusian Autoworks) - masculine, as the main word is masculine, and so on. D.
Since indeclinable nouns borrowed from other languages, they should check the spelling in the spelling dictionary.