iceman vs sniper

iceman

noun
  • An assassin. 

  • One who is cool under pressure. 

  • A human figure carved out of ice. 

  • A man who is skilled in travelling upon ice, as among glaciers. 

  • A person who trades in ice; a person employed to deliver block ice. 

  • An ancient human male mummified in ice. 

sniper

noun
  • One who shoots from a concealed position. 

  • A person or automated process set up by a person who or which attempts to win an online auction by placing a bid only seconds before the auction ends, leaving no time for other bidders to respond 

  • A hunter of snipe (the bird). 

  • A player who specializes in scoring goals. 

  • A person using long-range small arms for precise attacks from a concealed position. 

  • Any attacker using a non-contact weapon against a specific target from a concealed position. 

  • One who criticizes; a person who frequently snipes at others. 

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