barber vs safety razor

barber

noun
  • A person whose profession is cutting (usually male) customers' hair and beards. 

  • A barber surgeon, a foot soldier specializing in treating battlefield injuries. 

  • A storm accompanied by driving ice spicules formed from sea water, especially one occurring on the Gulf of St. Lawrence; so named from the cutting ice spicules. 

verb
  • To cut the hair or beard of (a person). 

  • To chatter, talk. 

safety razor

noun
  • A razor, designed for safety, that protects the skin from all but the very edge of the blade (as opposed to a straight razor). 

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