amateur vs buff

amateur

noun
  • A person attached to a particular pursuit, study, science, or art (such as music or painting), especially one who cultivates any study, interest, taste, or attachment without engaging in it professionally. 

  • Someone who is unqualified or insufficiently skillful. 

adj
  • Showing a lack of professionalism, experience or talent. 

  • Non-professional. 

  • Created, done, or populated by amateurs or non-professionals. 

buff

noun
  • A person who is very interested in a particular subject. 

  • Any substance used to dilute (street) drugs in order to increase profits. 

  • Undyed leather from the skin of buffalo or similar animals. 

  • A military coat made of buff leather. 

  • A buffalo, or the meat of a buffalo. 

  • The greyish viscid substance constituting the buffy coat. 

  • Compressive coupler force that occurs during a slack bunched condition. 

  • A brownish yellow colour. 

  • A tool, often one covered with buff leather, used for polishing. 

  • An effect that makes a character or item stronger. 

  • The bare skin. 

verb
  • To strike. 

  • To polish and make shiny by rubbing. 

  • To make a character or an item stronger. 

  • To modify a medical chart, especially in a dishonest manner. 

adj
  • Of the color of buff leather, a brownish yellow. 

  • Physically attractive. 

  • Unusually muscular. 

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