mower vs shearer

mower

noun
  • A farm machine used in hay production (sickle mower, finger-bar mower). 

  • A lawnmower, a machine used to cut grass on lawns. 

  • A person who cuts grass. 

shearer

noun
  • A person employed to remove the wool from sheep using shears. 

  • A person employed in a roller mill to shear off the uneven side of the hot metal plate. 

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