There are three types of initialisms in English:

a) initialisms with alphabetical reading, such as UK, BUP, CND etc

b) initialisms which are read as if they are words, e.g. UNESCO, UNO, NATO etc.

c) initialisms which coincide with English words in their sound form, such initialisms are called acronyms, e.g. CLASS (Computor-based Laboratory for Automated School System).

Some scientists unite groups b) and c) into one group which they call acronyms.

Some initialisms can form new words in which they act as root morphemes by different ways of wordbuilding:

a) affixation, e.g. AWALism, ex-rafer, ex- POW, to waafize, AIDSophobia etc.

b) conversion, e.g. to raff, to fly IFR (Instrument Flight Rules),

c) composition, e.g. STOLport, USAFman etc.

d) there are also compound-shortened words where the first component is an initial abbreviation with the alphabetical reading and the second one is a complete word, e.g. A-bomb, U-pronunciation, V -day etc. In some cases the first component is a complete word and the second component is an initial abbreviation with the alphabetical pronunciation, e.g. Three -Ds (Three dimensions) - стереофильм.

Abbreviations of words

Abbreviation of words consists in clipping a part of a word. As a result we get a new lexical unit where either the lexical meaning or the style is different form the full form of the word. In such cases as »fantasy» and «fancy», «fence» and «defence» we have different lexical meanings. In such cases as «laboratory» and «lab», we have different styles.

Abbreviation does not change the part-of-speech meaning, as we have it in the case of conversion or affixation, it produces words belonging to the same part of speech as the primary word, e.g. prof is a noun and professor is also a noun. Mostly nouns undergo abbreviation, but we can also meet abbreviation of verbs, such as to rev from to revolve, to tab from to tabulate etc. But mostly abbreviated forms of verbs are formed by means of conversion from abbreviated nouns, e.g. to taxi, to vac etc. Adjectives can be abbreviated but they are mostly used in school slang and are combined with suffixation, e.g. comfy, dilly, mizzy etc. As a rule pronouns, numerals, interjections. conjunctions are not abbreviated. The exceptions are: fif (fifteen), teen-ager, in one’s teens (apheresis from numerals from 13 to 19).

Lexical abbreviations are classified according to the part of the word which is clipped. Mostly the end of the word is clipped, because the beginning of the word in most cases is the root and expresses the lexical meaning of the word. This type of abbreviation is called apocope. Here we can mention a group of words ending in «o», such as disco (dicotheque), expo (exposition), intro (introduction) and many others. On the analogy with these words there developed in Modern English a number of words where «o» is added as a kind of a suffix to the shortened form of the word, e.g. combo (combination) - небольшой эстрадный ансамбль, Afro (African) -прическа под африканца etc. In other cases the beginning of the word is clipped. In such cases we have apheresis , e.g. chute (parachute), varsity (university), copter (helicopter) , thuse (enthuse) etc. Sometimes the middle of the word is clipped, e.g. mart (market), fanzine (fan magazine) maths (mathematics). Such abbreviations are called syncope. Sometimes we have a combination of apocope with apheresis,when the beginning and the end of the word are clipped, e.g. tec (detective), van (avanguard) etc.

Sometimes shortening influences the spelling of the word, e.g. «c» can be substituted by «k» before «e» to preserve pronunciation, e.g. mike (microphone), Coke (coca-cola) etc. The same rule is observed in the following cases: fax( facsimile), teck (technical college), trank (tranquilizer) etc. The final consonants in the shortened forms are substituded by letters characteristic of native English words.

SECONDARY WAYS OF WORDBUILDING

SOUND INTERCHANGE

Sound interchange is the way of word-building when some sounds are changed to form a new word. It is non-productive in Modern English, it was productive in Old English and can be met in other Indo-European languages.

The causes of sound interchange can be different. It can be the result of Ancient Ablaut which cannot be explained by the phonetic laws during the period of the language development known to scientists., e.g. to strike - stroke, to sing - song etc. It can be also the result of Ancient Umlaut or vowel mutation which is the result of palatalizing the root vowel because of the front vowel in the syllable coming after the root ( regressive assimilation), e.g. hot - to heat (hotian), blood - to bleed (blodian) etc.

In many cases we have vowel and consonant interchange. In nouns we have voiceless consonants and in verbs we have corresponding voiced consonants because in Old English these consonants in nouns were at the end of the word and in verbs in the intervocal position, e.g. bath - to bathe, life - to live, breath - to breathe etc.

STRESS INTERCHANGE

Stress interchange can be mostly met in verbs and nouns of Romanic origin : nouns have the stress on the first syllable and verbs on the last syllable, e.g. `accent - to ac`cent. This phenomenon is explained in the following way: French verbs and nouns had different structure when they were borrowed into English, verbs had one syllable more than the corresponding nouns. When these borrowings were assimilated in English the stress in them was shifted to the previous syllable (the second from the end) . Later on the last unstressed syllable in verbs borrowed from French was dropped (the same as in native verbs) and after that the stress in verbs was on the last syllable while in nouns it was on the first syllable. As a result of it we have such pairs in English as : to af`fix -`affix, to con`flict- `conflict, to ex`port -`export, to ex`tract - `extract etc. As a result of stress interchange we have also vowel interchange in such words because vowels are pronounced differently in stressed and unstressed positions.

SOUND IMITATION

It is the way of word-building when a word is formed by imitating different sounds. There are some semantic groups of words formed by means of sound imitation

a) sounds produced by human beings, such as : to whisper, to giggle, to mumble, to sneeze, to whistle etc.

b) sounds produced by animals, birds, insects, such as : to hiss, to buzz, to bark, to moo, to twitter etc.

c) sounds produced by nature and objects, such as : to splash, to rustle, to clatter, to bubble, to ding-dong, to tinkle etc.

The corresponding nouns are formed by means of conversion, e.g. clang (of a bell), chatter (of children) etc.

BLENDS

Blends are words formed from a word-group or two synonyms. In blends two ways of word-building are combined : abbreviation and composition. To form a blend we clip the end of the first component (apocope) and the beginning of the second component (apheresis) . As a result we have a compound- shortened word. One of the first blends in English was the word «smog» from two synonyms : smoke and fog which means smoke mixed with fog. From the first component the beginning is taken, from the second one the end, «o» is common for both of them.