continue vs duck out

continue

verb
  • To adjourn, prorogue, put off. 

  • To make a continuation bet. 

  • To retain (someone or something) in a given state, position, etc. 

  • To proceed with (doing an activity); to prolong (an activity). 

  • To remain in a given place or condition; to remain in connection with; to abide; to stay. 

  • To make last; to prolong. 

  • To resume. 

noun
  • An option allowing the player to resume play after game over, when all lives have been lost, while retaining their progress. 

duck out

verb
  • To depart quickly or exit abruptly by way of, especially in a manner which does not attract notice and before a meeting, event, etc. has concluded. 

  • To move or act so as to achieve avoidance, escape, or evasion. 

  • To depart quickly or exit abruptly, especially in a manner which does not attract notice and before a meeting, event, etc. has concluded. 

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