hold up vs unblock

hold up

verb
  • To impede; detain. 

  • To wait or delay. 

  • To support or lift. 

  • To fulfil or complete one's part of an agreement. 

  • To rob at gunpoint. 

  • (Of an artistic work) To continue to be seen as good, to avoid seeming dated. 

  • To withstand; to stand up to; to survive. 

  • To keep up; not to fall behind; not to lose ground. 

unblock

verb
  • To remove or clear a block or obstruction from. 

  • In whist, to throw away a high card so as not to interrupt one's partner's long suit. 

  • To free or make available. 

  • To enable communication again, via telephone, instant messaging, etc., with (somebody previously blocked). 

noun
  • The removal of a block or blockage. 

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