Words of the week

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Across
  1. 3. (n) something like a hole in the mountains, or deep underground
  2. 6. (n) from the verb 'recommend'
Down
  1. 1. (n) you make these using 'could'
  2. 2. (n) what we call a perfect place
  3. 4. (n) a place a river flows through, or in between tall hills or mountains
  4. 5. (n, pl) wide green areas, usually flat