Linguistics

Lexicography (dictionary-making) is the practical counterpart of lexicology (the study of lexical items). How might a lexicographer decide what to include as head-forms in a dictionary? Why can it be hard to decide? Might the criteria change over time? Illustrate with suitable examples the major problems of this aspect of dictionary-making. (Relates esp. to weeks 3 and 4.)
4. Explain what is involved when a lexeme changes in meaning. Why might the issues involved be important politically or culturally?