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3. a familiar type of character, story, or symbol that appears over and over again in books, movies and fairy tales
5. a system where people, things, or ideas are ranked one above another based on their importance, power or level
8. a process where an animal goes through a major physical change in its body shape and structure as it grows from a young animal (like a baby or larva) into an adult
14. the study of language, especially its history and development
15. the scientific study of past human life and activities through the examination of material remains
16. a person whose job is to design buildings
17. a situation where there is no government, no laws, and no leaders in charge of a country or group of people
18. the chemical processes by which a plant or an animal uses food and water to grow, heal and make energy
20. a place where important records, old documents, and historic photos are kept safe so they don't get lost or ruined

1. when cancer cells break away from where they first started and spread to other parts of the body
2. the male head of a family, tribe or household
4. the study of big, important life questions that do not have easy or scientific answers
6. the main opponent or enemy of a person, team or organisation
7. a figure of speech that directly compares two unrelated things by stating that one is the other
9. a person who actively helps others and works to improve human well-being, usually by donating money, time, skills or resources to good causes
10. a form of government where a small group of powerful people holds all the control and makes the rules for an entire country or organisation
11. a symphony orchestra or a music society that supports and presents classical music
12. the area of philosophy that studies the nature of existence, truth and knowledge
13. a form of government where a country is ruled by a single person—such as a king, queen, emperor or empress—who usually keeps that position for life
19. a person who loves books