Vocabulary

1. to allow something to happen
3. a form of a language that is spoken in a particular area and that uses some of its own words, grammar, and pronunciations
5. to stop being visible, to pass out of sight
7. a symbol that is used to identify a company and that appears on its products
8. to permit something, to regard or treat something as acceptable
9. words that are not considered part of the standard vocabulary of a language and that are used very informally in speech
10. a company that makes a product
12. the situation that results when something (such as a plant or animal species) has died out completely
16. to destroy much or most of something, to cause great damage or harm to something
18. a way of pronouncing words that occurs among the people in a particular region or country
19. a person or business that sells things directly to customers for their own use
20. funny and clever

2. the act of publicly saying that you like or use a product or service in exchange for money
4. someone who buys goods or services from a business
6. a group of people who have the same interests, religion, race, etc.
11. someone who is trying to win or do better than all others
13. appealing and easy to remember
14. a small printed advertisement or announcement that is given out to many people by hand
15. to allow or permit (someone or something) to do something
17. a legal agreement between people, companies, etc.