practical nurse vs sitter

practical nurse

noun
  • A person who is certified to provide custodial care such as help in walking, bathing, and feeding. 

sitter

noun
  • One employed to watch or tend something; a babysitter, housesitter, petsitter, etc. 

  • A very easy scoring chance. 

  • A broody hen. 

  • A participant in a séance. 

  • Someone who sits, e.g. for a portrait. 

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