A Quick and Simple Dictionary

boss

1. Noun.  A swelling, lump or protuberance in an animal, person or object.
2. Noun.  (geology) A lump-like mass of rock, especially one projecting through a strata of different rock.
3. Noun.  A convex protuberance in hammered work, especially the rounded projection in the centre of a shield.
4. Noun.  (context, mechanics) A protrusion, frequently a cylinder of material that extends beyond a hole.
5. Noun.  (architecture) A knob or projection, usually at the intersection of ribs in a vault.
6. Verb.  (transitive) To decorate with bosses; to emboss.
7. Noun.  (obsolete) A hassock or small seat, especially made from a bundle of straw.
8. Noun.  A person who oversees and directs the work of others; a supervisor..
9. Noun.  A person in charge of a business or company.
10. Noun.  A leader, the head of an organized group or team.
11. Noun.  The head of a political party in a given region or district.
12. Noun.  (informal) A term of address to a man.
13. Noun.  (video games) A final enemy in a video game or in a level/major area/dungeon that is particularly challenging and usually must be beaten in order to progress in or to complete the game.
14. Verb.  (transitive) To exercise authoritative control over; to lord over; to boss around; to tell (someone) what to do, often repeatedly.
15. Adjective.  (slang, Liverpool) Of excellent quality, first-rate.