Revision:

1. Give a definition of the word.

2. What are the main features of the word?

3. Give reasons why the word is considered to be the central unit of language.

4. Why does the problem of the word boundaries arise during the study of the English language?

5. How can the word boundaries be determined?

6. How can the word be defined using the criteria of the other language subsystems?

7. How can the words be classified according to the criteria of the other language subsystems?

8. What is lexis? Which units of language build up its lexis?

9. What is the difference between words and word-forms?

10. What is a lexeme?

11. Explain the difference between the terms lexeme and word.