外来词分为四类:1 Denizens, cup from cuppa, port form portus2) Aliens garage decor 3) Translation-loans e.g. long time no see 4)Semantic- loans. e.g. dream. Motivation a3e: onomatopoeic motivation, morphological motivation, semantic motivation, etymological motivation. Types of meaning: grammatical& lexical conceptual& associative (connotative, stylistic, affective, collocative, 多义关系及两种研究方法 polysemy is a common feature peculiar to all natural language that one word has two or more senses or meanings. diachronic approach is an approach to polysemy which studies how a word derived its different meanings from its primary meaning in the course of time. Synchronic approach is an approach to polysemy which studies the coexistence of various meanings of the same word in a certain historical period of time. Primary meaning is the only meaning that a word had when it was first created. Derived meanings are the meanings that a word gets from the primary meaning at different stages of its deve lopment in the course of ti 同形同音异义关系 Homonymy is one of the features of words that a word is different in meaning from another, but either identical both in sound and spelling or identical only in sound or spelling with the other Homonyms generally fall into three classes perfect homonyms (same name): homographs (same spelling) and homophones (some sound). Perfect homonyms are those words identical both in sound and spelling, but different in meaning, e.g. bear /bea/(n)a large heavy animal; bear /bea/(v) to put up with. Homographs are the words identical only in spelling but different in sound and meaning, e.g. saw //(v) to scatter seeds; sow/sau/(n) female adult pig. Homophones refer to the words identical only in sound but different in spelling and meaning, e. g. dear /dia/(n)a loved person: deer /dia/(n)a kind of animal. 同形同音异义词与多义词的区别 Perfect homonyms and polysemants are fully identical with regard to spelling and pronunciation. This creates the problem of differentiation. The fundamental difference between homonyms and polysemants lies in the fact that the former refers to different words which happen to share the same form and the latter is the one and same word which has several distinguishable meanings. One important criterion is to see their etymology, i.e. homonyms are from different sources whereas a polysemant is from the same source which has acquired different meanings in the course of development. The second principal consideration is semantic relatedness. The various meanings of a polysemant are correlated and connected to one central meaning to a greater or lesser degree, e. g. neck(See 6. Polysemy). On the other hand, meanings of different homonyms have nothing to do with one another In dictionaries, a polysemant has its meanings all listed under one headword whereas homonyms are listed as separate entries外来词分为四类：1 Denizens ,cup from cuppa , port form portus 2) Aliens garage , décor 3) Translation –loans e.g. long time no see 4) Semantic- loans.e.g. dream. Motivation 分 类： onomatopoeic motivation, morphological motivation, semantic motivation, etymological motivation. Types of meaning: grammatical ~ & lexical ~; conceptual ~& associative ~(connotative~, stylistic~, affective ~, collocative ~,) 多义关系及两种研究方法 polysemy is a common feature peculiar to all natural language that one word has two or more senses or meanings. Diachronic approach is an approach to polysemy which studies how a word derived its different meanings from its primary meaning in the course of time. Synchronic approach is an approach to polysemy which studies the coexistence of various meanings of the same word in a certain historical period of time. Primary meaning is the only meaning that a word had when it was first created. Derived meanings are the meanings that a word gets from the primary meaning at different stages of its development in the course of time. 同形同音异义关系 Homonymy is one of the features of words that a word is different in meaning from another, but either identical both in sound and spelling or identical only in sound or spelling with the other Homonyms generally fall into three classes: perfect homonyms (same name); homographs (same spelling) and homophones （some sound）. Perfect homonyms are those words identical both in sound and spelling, but different in meaning, e.g. bear /bea/ (n) a large heavy animal; bear /bea/ (v) to put up with. Homographs are the words identical only in spelling but different in sound and meaning, e.g. saw / / (v) to scatter seeds; sow /sau/ (n) female adult pig. Homophones refer to the words identical only in sound but different in spelling and meaning, e.g. dear /dia/ (n) a loved person; deer /dia/ (n) a kind of animal. 同形同音异义词与多义词的区别 Perfect homonyms and polysemants are fully identical with regard to spelling and pronunciation. This creates the problem of differentiation. The fundamental difference between homonyms and polysemants lies in the fact that the former refers to different words which happen to share the same form and the latter is the one and same word which has several distinguishable meanings. One important criterion is to see their etymology, i.e. homonyms are from different sources whereas a polysemant is from the same source which has acquired different meanings in the course of development. The second principal consideration is semantic relatedness. The various meanings of a polysemant are correlated and connected to one central meaning to a greater or lesser degree, e. g. neck (See 6.1 Polysemy) . On the other hand, meanings of different homonyms have nothing to do with one another. In dictionaries, a polysemant has its meanings all listed under one headword whereas homonyms are listed as separate entries