1. Structural features of CW
1.1. are formed with help of free stems: anyway, laptop
1.2. used pattern is two-stem pattern: chatter-bpx, seaport
2. Formation of CW
2.1. composition: greenhouse
2.2. conversion from a phrase: a stay-at-home
2.3. back formation: a baby sitter-to baby sit
3. Classification of CW
3.1. Neutral CW
3.1.1. formed by joining together 2 stems without any joining morphemes: hair-do, air-tight, to double-click, anyway, anyone
3.2. Morphological type of compounds
3.2.1. stems are joined be means of a wovel/consonant: Anglo-Saxon
3.3. Compound-derived words
3.3.1. composition+derivation: long-legged
3.4. Compound-shortened words
3.4.1. composition+shortenings: TV-set
4. Shortenings
4.1. Lexical shortenings
4.1.1. Clipped words
4.1.1.1. Aphaeresis
4.1.1.1.1. is clipping of the 1st part of the word: history-story, defence-fence
4.1.1.2. Syncope
4.1.1.2.1. is clipping of the middle of the word: mathematics-maths
4.1.1.3. Apocope
4.1.1.3.1. is clipping of the last letter or syllable: photograph-photo, advertisment-ad
4.1.1.4. The combination of aphaeresis with apocope
4.1.1.4.1. is clipping of the beginning and the end of the word: influenza-flu, refrigerator-frige
4.1.2. Initial shortenings
4.1.2.1. Alphabetical pronunciation: SOS, BBC
4.1.2.2. Acronyms: NATO, UNO, UNESCO
4.2. Spelling shortenings
4.2.1. Latin:a.m/p.m; i.e.,e.g.
4.2.2. Native Spelling Shortenings: Mr, Mrs, Ms, min, sec, cm, PhD, capt., Dept.
5. Secondary ways of word-building
5.1. Sound interchange
5.1.1. used to built different words and word forms through the changes of the sound form of roots: to sing - song, to breathe - breath
5.2. Stress interchange
5.2.1. as a result of stress interchange we have vowel interchange as well: 'present-to pre'sent
5.3. Reduplication
5.3.1. new words are formed by repeating one and the samw syllable or a whole stem: fifty-fifty, knock-knock
5.4. Sound imitation
5.4.1. the naming of action by more or less exact reproduction of sound: to sneeze, to whisper
5.5. Blending
5.5.1. smog=smoke+fog, motel=motor+hotel
5.6. Redistribution
5.6.1. the result of misunderstanding structure, the boarder between the indefinite article and the noun is misunderstood: an eke name - nick name, a napron - an apron, a nadder - an adder