English LexicologyChapter 1 Basic concepts of words and vocabulary1Abstractv This chapter gives a scientific definition of a word, discusses the relationship between sound and meaning, between sound and form, between words and vocabulary, puts forward the three main principles of lexical classification and elaborates on the features of basic word stock and non-basic vocabulary, content words and functional words, native words and borrowed words.2Main pointv definition of a wordv sound and meanin