public function getName()
    {
        $similarWords = [];
        $words = [];

        foreach ($this->_definitionSets as $definitionSet) {
            $word = $this->_getUniqueWord($definitionSet, $similarWords);
            $words[] = $word['word'];
            $similarWords[] = $word['word'];
            $similarWords = array_merge($similarWords, $word['similarWords']);
        }

        return implode(' ', $words);
    }