conscientious objector vs dove

conscientious objector

noun
  • Someone who refuses to perform military service (for example to fight in an armed conflict, or be compulsorily drafted in a time of peace) because of religious or moral principles. 

dove

noun
  • A person favouring conciliation and negotiation rather than conflict. 

  • Term of endearment for one regarded as pure and gentle. 

  • A greyish, bluish, pinkish colour like that of the bird. 

  • A pigeon, especially one smaller in size; a bird (often arbitrarily called either a pigeon or a dove or both) of more than 300 species of the family Columbidae. 

verb
  • Strong simple past tense of dive 

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