out on a limb vs wide open

out on a limb

phrase
  • In a risky, precarious, daring, or uncompromising position, especially one outside of the mainstream; vulnerable. 

wide open

adj
  • vulnerable or unprotected 

  • of the situation at the beginning of trading when there is a large spread between bid and ask prices 

  • having no laws or law enforcement 

  • completely open 

  • unsettled or unresolved 

  • without the presence of opponents nearby 

How often have the words out on a limb and wide open occurred in a corpus of books? (source: Google Ngram Viewer )