Collective Nouns

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Across
  1. 1. group of teachers
  2. 5. group of stars
  3. 7. group of cards
  4. 9. group of cubs
  5. 10. group of directors
Down
  1. 2. group of ants
  2. 3. group of thieves
  3. 4. group of wolves
  4. 5. group of coconuts
  5. 6. group of whales
  6. 8. group of bacteria