Prefix co-

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Across
  1. 2. someone who owns something together with someone else
  2. 4. to live together peacefully even if you are different
  3. 5. to mix together.
  4. 6. two people who share the job of raising a child
  5. 9. living side by side without fighting
  6. 11. a second pilot who helps the main pilot fly a plane
  7. 13. a person who leads a group together with someone else
  8. 15. to organize things or people so they work well together
  9. 18. a person who writes a book or story with someone else
Down
  1. 1. to sign a paper with another person to promise something, like a loan
  2. 3. a person who starts a company or group with others
  3. 7. two or more people or things that are exactly the same in importance
  4. 8. to work together with someone
  5. 10. a school where boys and girls learn together
  6. 12. a person who helps another person host a show or event
  7. 14. to work together on something creative
  8. 16. to live together, usually in the same home
  9. 17. a person you work with at a job