boss vs sir

boss

noun
  • A term of address to a man. 

  • Wife. 

  • An enemy, often at the end of a level, that is particularly challenging and must be beaten in order to progress. 

  • A swelling, lump or protuberance in an animal, person or object. 

  • A convex protuberance in hammered work, especially the rounded projection in the centre of a shield. 

  • A wooden vessel for the mortar used in tiling or masonry, hung by a hook from the laths, or from the rounds of a ladder. 

  • A knob or projection, usually at the intersection of ribs in a vault. 

  • A person in charge of a business or company. 

  • A protrusion, frequently a cylinder of material that extends beyond a hole. 

  • A lump-like mass of rock, especially one projecting through a stratum of different rock. 

  • A target block, made of foam but historically made of hay bales, to which a target face is attached. 

  • A head or reservoir of water. 

  • A leader, the head of an organized group or team. 

  • A person who oversees and directs the work of others; a supervisor. 

  • The head of a political party in a given region or district. 

adj
  • Of excellent quality, first-rate. 

verb
  • To exercise authoritative control over; to tell (someone) what to do, often repeatedly. 

  • To decorate with bosses; to emboss. 

sir

noun
  • A respectful term of address to a man of higher rank or position 

  • A man of a higher rank or position. 

  • to a teacher. 

  • to a knight or other low member of the peerage. 

  • to a superior military officer. 

  • A respectful term of address to an adult male (often older), especially if his name or proper title is unknown. 

verb
  • To address (someone) using "sir". 

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