Frequency - Word Form
  1 authoritative
  1 civilizations
  1 collaboration
  1 conscientious
  1 determination
  1 encouragement
  2 extraordinary
  1 indispensable
  1 investigation
  1 neighbourhood
  1 participation
  1 spontaneously
  2 strengthening
  1 uncertainties
  1 unconditional
  2 understanding
  2 unforgettable