shut up vs speak out

shut up

adj
  • Closed up or off, as in a building that no one is to enter. 

intj
  • Stop talking, crying, etc. 

  • I don't believe it!, no way! 

verb
  • Of a person, to stop talking or (of a person or thing) making noise. 

  • To terminate (a business). 

  • To close (a building) so that no one can enter. 

  • To put (someone or something) in a secure enclosed space, such as a room or container. 

speak out

verb
  • To assert or promote one's opinion; to make one's thoughts known. 

How often have the words shut up and speak out occurred in a corpus of books? (source: Google Ngram Viewer )