Brain Gymnastic - Crossword Series 1

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Across
  1. 2. involve (someone) deeply in an argument
  2. 6. a geographical index or dictionary
  3. 8. lives in the sea with several legs
  4. 9. lacking any obvious principle of organization
  5. 10. the vocabulary of a person or language
  6. 11. a deep-bodied freshwater fish, typically with barbels around the mouth
  7. 12. the navel
Down
  1. 1. relating to finance
  2. 3. an individual animal, plant, piece of a minera
  3. 4. made or produced by human beings rather than occurring naturally
  4. 5. space traveller
  5. 7. collection of woodlands