1. very old fashioned or no longer used

2. able to speak two languages very well

3. the scientific study of languages

4. a combination of two vowels in a sound

5. a word that has the same sound end as another one in close proximity

6. a word that is often used to avoid using another one which could be found offensive

7. a word or phrase used to describe somebody or something else, in a way that is different from its normal use

8. a word or phrase that compares something to something else, using the words like or as

9. related to the first language humans learn ...tongue

10. words or expressions that are used by a particular profession or group of people

11. very informal words

12. the use of the same letter or sound at the beginning of words that are close together

13. the study of the sounds in language

14. the particular way in which a person pronounces words and sounds that makes them distinguishable of a country

15. a form of language that is spoken in a part of a country

16. adapting the use of language having in mind the social context in which it is produced

17. not formal