1. The subject of comparative typology and its aims

24. Lacunae in English & Ukrainian.
A lexical gap or lacuna is an absence of a word in a particular language. Several types of lexical gaps are possible, such as untranslatability, missing inflections, or nonsense words.
Means of enreaching the vocabelary of any language
Though languages are divergent typologically, they posess the same sources for new means of designation, i.e. 4 types of means of enreaching the vocabelary of any language, their correlation is quite allomorphic in gifferent languages. They are:

1. 
   MORPHEMIC derivation (MD)– widely used in non isolating languages, is a main sourse of new words. (f.e. in Slavonic languages it covers 83% of the new lexicon in the 60s of the XXc., while in Germanic, in Engl.f.e.63%, the same period; in isolating languages (Chinese, Vietnamese) it hardly can be found). Together with sufixal-prefixal derivation, MD embraces such types of compounding as blendings (the main sourse of neologisms in present-day Egl.), abbreviations of different kinds etc (magalog – ‘журнального формату каталог з рекламою товарів, що замовляється поштою’ (magazine ’журнал’ + catalogue).
   
2. 
   SEMANTIC derivation (SD) =words’ new meanings. As the meaning the word is a dynamic structure (Z.A.Charytonchik), in the course of time a word can gain its new meanings appeared in the same or different context. The phenomen of SD is of universal nature, it characterizes the lexicon of all existing languages. Analiticallanguages: the majority of words is much more polysemantic, than in sentactic ones. In Slavonic SD cover 8-10% of neologisms, in Engl. Its productivity differs by suggestion of diff.authors: 30.8% (Ginzburg R.S., Knidel S.S.A course in Modern Eng.Lexicology), 10% (Зацный Ю.А. Обогащение словарного запаса англ.языка).Conversion is a special case of SD, being much more productive in Eng. than in Ukr. The role of conversion in Eng. becomes larger & larger, according to J.Ayto: to air 1) «провітрювати»; the new mrening 2) ‘бути переданим по радіо та телебаченню’.
   
3.