celebrate vs picnic

celebrate

verb
  • To engage in joyful activity in appreciation of an event. 

  • To perform or participate in, as a sacrament or solemn rite; to perform with appropriate rites. 

  • To extol or honour in a solemn manner. 

  • To honour by rites, by ceremonies of joy and respect, or by refraining from ordinary business; to observe duly. 

picnic

verb
  • To take part in a 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. 

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