flatter vs thunder

flatter

verb
  • To encourage or cheer someone with (usually false) hope. 

  • To compliment someone, often (but not necessarily) insincerely and sometimes to win favour. 

  • To enhance someone's vanity by praising them. 

  • To portray someone to advantage. 

noun
  • Someone who flattens, purposely or accidently. Also flattener. 

  • Someone who lives in a rented flat. 

  • A type of set tool used by blacksmiths. 

  • A flat-faced fulling hammer. 

  • A drawplate with a narrow, rectangular orifice, for drawing flat strips such as watch springs. 

thunder

verb
  • To say (something) with a loud, threatening voice. 

  • To make a noise like thunder. 

  • To produce thunder; to sound, rattle, or roar, as a discharge of atmospheric electricity. 

  • To (make something) move very fast (with loud noise). 

  • To produce something with incredible power. 

noun
  • The spotlight. 

  • An alarming or startling threat or denunciation. 

  • The loud rumbling, cracking, or crashing sound caused by expansion of rapidly heated air around a lightning bolt. 

  • A deep, rumbling noise resembling thunder. 

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