picnic vs sitter

picnic

noun
  • An easy or pleasant task. 

  • An informal social gathering, usually in a natural outdoor setting, to which the participants bring their own food and drink. 

  • The meal eaten at such a gathering. 

  • A cut of pork from the shoulder area (above the front leg) of a pig. 

verb
  • To take part in a picnic. 

sitter

noun
  • A very easy scoring chance. 

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

  • A broody hen. 

  • A participant in a séance. 

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

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