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Across 4. v. have an obligation to pay or repay (something, especially money) in return for something received 5. n. an important assignment given to a person or group of people, typically involving travel abroad 7. n. physical harm that impairs the value, usefulness, or normal function of something 8. n. a band or bundle of fibrous tissue in a human or animal body that has the ability to contract, producing movement in or maintaining the position of parts of the body

Down 1. n. a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. 2. n. a member of a tribe that travels from place to place instead of living in one place all the time, usually in order to find grass for their animals 3. a. being the only one of its kind; unlike anything else 6. n. a place giving temporary protection from bad weather or danger