loud vs supersonic

loud

adj
  • Noisy. 

  • High-quality; premium; (by extension) having a strong or pungent odour indicating good quality. 

  • Of great intensity. 

  • Having unpleasantly and tastelessly contrasting colours or patterns; gaudy. 

  • Not subtle or reserved, brash. 

noun
  • High-quality marijuana. 

  • A loud sound or part of a sound. 

adv
  • Loudly. 

supersonic

adj
  • Ultrasonic, having a frequency too high to be audible. 

  • Greater than the speed of sound (in the same medium, and at the same temperature and pressure). 

noun
  • An aircraft that can travel at the speed of sound. 

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