chief vs foremost

chief

adj
  • Primary; principal. 

  • Intimate, friendly. 

noun
  • A leader or head of a group of people, organisation, etc. 

  • An informal term of address. 

  • The principal part or top of anything. 

  • An informal term of address for a Native American or First Nations man. 

  • The top part of a shield or escutcheon; more specifically, an ordinary consisting of the upper part of the field cut off by a horizontal line, generally occupying the top third. 

verb
  • To smoke cannabis. 

foremost

adj
  • Of the highest rank or position; of the greatest importance; of the highest priority. 

  • Positioned in front of (all) others in space, most forward. 

  • Coming before (all) others in time. 

  • Closest to the bow. 

adv
  • In front, prominently forward. 

  • First in time. 

  • Most importantly. 

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