doublespeak vs fuzzword

doublespeak

noun
  • Any language deliberately constructed to disguise or distort its actual meaning, often by employing euphemism or ambiguity. 

fuzzword

noun
  • A term that is deliberately vague or euphemistic in meaning. 

How often have the words doublespeak and fuzzword occurred in a corpus of books? (source: Google Ngram Viewer )