Andrew & Patrick tackle the Dictionary (class)

DictionaryClass.rb

class Dictionary
  def initialize
    @my_hash = {}
  end
  
  def add(word_hash)
    if word_hash.is_a?Hash
      @my_hash.merge!(word_hash)
    else
      @my_hash[word_hash] = nil
    end 
  end
  
  def include?(word)
    @my_hash.has_key?(word)
  end

  def keywords
    @my_hash.keys.sort
  end

  def entries
    @my_hash
  end

  def find(word)
    @my_hash.select { |k,v| k =~ /^#{ word }/ }
  end
end