boss vs pole star

boss

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

  • 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 term of address to a man. 

  • A head or reservoir of water. 

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

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

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

  • To decorate with bosses; to emboss. 

adj
  • Of excellent quality, first-rate. 

pole star

noun
  • A person, principle, or thing which acts as a guide; a guiding light; also, something which attracts much attention; a centre of attention. 

  • The star visible to the naked eye which was in the past, is now, or will be in the future nearest a celestial pole of a planet. 

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