Dictionary.com
Thesaurus.com
Synonyms

boss

1 American  
[baws, bos] / bɔs, bɒs /

noun

  1. a person who employs or superintends workers; manager.

    Synonyms:
    overseer, administrator, superintendent, chief, foreman, head, supervisor
  2. a politician who controls the party organization, as in a particular district.

  3. a person who makes decisions, exercises authority, dominates, etc..

    My grandfather was the boss in his family.

  4. (in a video game or role-playing game) a powerful nonplayer character, often appearing at the end of a level or at the end of the game, who must be defeated in order for a player to move on to a new level or to win the game (often used attributively): Your objective for this boss-level event is to survive several waves of zombie attacks.

    Is there a trick to beating the final boss?

    Your objective for this boss-level event is to survive several waves of zombie attacks.


verb (used with object)

  1. to be master of or over; manage; direct; control.

  2. to order about, especially in an arrogant manner.

verb (used without object)

  1. to be boss.

  2. to be too domineering and authoritative.

adjective

  1. chief; master.

  2. Slang. first-rate.

boss 2 American  
[baws, bos] / bɔs, bɒs /

noun

  1. Botany, Zoology. a protuberance or roundish excrescence on the body or on some organ of an animal or plant.

  2. Geology. a knoblike mass of rock, especially an outcrop of igneous or metamorphic rock.

  3. an ornamental protuberance of metal, ivory, etc.; stud.

  4. Architecture.

    1. an ornamental, knoblike projection, as a carved keystone at the intersection of ogives.

    2. a stone roughly formed and set in place for later carving.

  5. Bookbinding. one of several pieces of brass or other metal inset into the cover of a book to protect the corners or edges or for decoration.

  6. Machinery. a small projection on a casting or forging.

  7. Nautical. a projecting part in a ship's hull, or in one frame of a hull, fitting around a propeller shaft.


verb (used with object)

  1. to ornament with bosses.

  2. to emboss.

  3. (in plumbing) to hammer (sheet metal, as lead) to conform to an irregular surface.

boss 3 American  
[bos, baws] / bɒs, bɔs /

noun

  1. a familiar name for a calf or cow.


boss 4 American  
[bos] / bɒs /

adjective

Scot.
  1. hollow; empty.


boss 1 British  
/ bɒs /

noun

  1. a knob, stud, or other circular rounded protuberance, esp an ornamental one on a vault, a ceiling, or a shield

  2. biology any of various protuberances or swellings in plants and animals

    1. an area of increased thickness, usually cylindrical, that strengthens or provides room for a locating device on a shaft, hub of a wheel, etc

    2. a similar projection around a hole in a casting or fabricated component

  3. an exposed rounded mass of igneous or metamorphic rock, esp the uppermost part of an underlying batholith

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to ornament with bosses; emboss

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
boss 2 British  
/ bɒs /

noun

  1. a person in charge of or employing others

  2. a professional politician who controls a party machine or political organization, often using devious or illegal methods

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to employ, supervise, or be in charge of

  2. to be domineering or overbearing towards (others)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. slang excellent; fine

    a boss hand at carpentry

    that's boss!

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
BOSS 3 British  
/ bɒs /

acronym

  1. Bureau of State Security; a branch of the South African security police

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

boss 4 British  
/ bɒs /

noun

  1. a calf or cow

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of boss1

An Americanism dating from 1640–50; from Dutch baas “master, foreman”

Origin of boss2

First recorded in 1250–1300; Middle English boce, from Anglo-French: “lump, growth, boil”; Old French, from unattested Vulgar Latin bottia, of uncertain origin

Origin of boss3

An Americanism first recorded in 1790–1800; compare dialectal (southwest England) borse, boss, buss “six-month-old calf”

Origin of boss4

First recorded in 1505–15; of obscure origin

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The 40-year-old had alluded to frustration behind the scenes in the build-up to the match as the United boss refused to clarify his recent comments about the club's transfer plans.

From Barron's

More than two months after an embarrassing daylight heist which has heaped pressure on Louvre bosses, staff are calling for more recruitment and better maintenance of the vast complex of buildings.

From Barron's

Strasbourg boss Rosenior is the leading candidate to become the new boss at Chelsea, who have the same owners as the French club.

From BBC

The new Blues boss - presumably Rosenior - will inherit a squad of players who won Chelsea's second Club World Cup title only six months ago.

From BBC

He also brought up the names of three high-profile former Premier League bosses and suggested they would not be subjected to the same behaviour.

From BBC