English Reference

Word

boss

US/ˈbɑs/

UK/bˈɒs/

Definitions

01manager or supervisor

A2 · Elementary Countable noun

n. the person who is in charge of you at work and tells you what to do.

n. a person who oversees and directs the work of others in a professional or organizational context.

“I need to ask my boss for a day off to go to the dentist.”

“The department boss implemented a new policy regarding remote work to improve employee retention and overall morale.”

02video game enemy

B1 · Intermediate Countable noun Informal

n. a very strong enemy at the end of a level in a video game.

n. a significant non-player character enemy, typically encountered at the end of a stage, that is more difficult to defeat than standard enemies.

“It took me five tries to beat the final boss of the game.”

“The game's final boss features multiple phases, requiring players to adapt their strategy as the enemy's attack patterns evolve.”

Synonyms

final bossguardian

03term of address

B2 · Upper Intermediate Countable noun Informal · British English · Dialect

n. a friendly or informal way to address a man, often a customer.

n. an informal vocative used to address a male peer or customer, often implying a casual or respectful rapport.

“Excuse me, boss, do you have the time?”

“The market trader addressed every male customer as boss, a linguistic habit intended to build quick, informal rapport.”

Synonyms

04architectural protuberance

C2 · Proficiency Countable noun Science Technical

n. a raised part or lump on a surface, often used for decoration.

n. a decorative or functional protuberance on a surface, such as the intersection of vaulting ribs in architecture.

“The old shield had a metal boss in the center for extra strength.”

“The Gothic ceiling was adorned with intricate stone bosses where the ribs of the vault met, each carved with a unique floral motif.”

Synonyms

protuberanceknobstud

05to give orders

B1 · Intermediate Informal

v. to tell people what to do in a way that is annoying or too powerful.

v. to exercise authoritative control over others, often in a domineering or repetitive manner.

“Stop trying to boss me around; I know how to do my job.”

“She tended to boss her younger siblings around whenever their parents were out of the house, much to their annoyance.”

Usage

Often used as the phrasal verb 'boss around'.

Antonyms

06excellent

C1 · Advanced Slang · American English

adj. very good or impressive.

adj. of excellent quality; first-rate or highly impressive.

“That new car you bought is totally boss.”

“The band played a boss set last night, leaving the audience hoping for an encore that never came.”

Antonyms

Word family

NOUN

boss(A2)

ADJECTIVE

Related words

Idioms

Domains

ArchitectureFinanceGeology

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A2 KeyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.3.0–4.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 2.0–2.524–43TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.225–549
Frequency
Common
Level
A2 · ElementaryOxford
Updated

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