chief

1 of 3

adjective

ˈchēf 

1

: accorded highest rank or office

chief librarian

the company's chief executive

2

: of greatest importance or influence

the chief reasons

their chief accomplishment

chief

2 of 3

adverb

archaic

: chiefly

chief

3 of 3

noun

1

: the upper part of a heraldic field

2

: the head of a body of persons or an organization : leader

chief of police

3

: the principal or most valuable part

would never rest till she had read the chief of the letter to him

—Jane Austen

chiefship

ˈchēf-ˌship 

noun

Phrases

in chief

: in the chief position or place

—often used in titles

commander in chief

Synonyms

Adjective

• main
• greatest
• primary
• highest
• foremost
• predominant
• dominant
• principal
• first
• leading
• big

Noun

• body
• core
• bulk
• weight
• majority
• main
• staple

Examples of chief in a Sentence

Adjective

the chief engineer on the project

Her job is their chief source of income.

He has many concerns, chief among them his health.

Noun

the chief of the estate was left to the eldest son

our chief is out on a business trip right now

Recent Examples on the Web

Adjective

Due to the expense, first-time home buyers in San Jose are also getting older, which may impact school enrollment, said Daryl Fairweather, chief economist at Redfin. —Bloomberg, Mercury News, 25 June 2025

And the Silver chief financial officer, who was expected to be in court with documents, was a no-show. —David Lyons, Sun Sentinel, 25 June 2025

Noun

The death toll is estimated to be 78 in Iran, including four top security chiefs, according to the country’s U.N. ambassador, while three casualties have been confirmed in Israel as reported by the Associated Press. —Isabel Rivera, Miami Herald, 15 June 2025

This new housing, as well as retrofits of old housing, could play an important role in Chicago's goal of reducing emissions 62% in the next 15 years, says Jung Yoon, chief of policy for the Chicago mayor's office. —Ryan Kellman, NPR, 15 June 2025

Word History

Etymology

Noun and Adjective

Middle English, from Anglo-French chief, chef head, chief, from Latin caput head — more at head

First Known Use

Adjective

14th century, in the meaning defined at sense 1

Adverb

14th century, in the meaning defined above

Noun

15th century, in the meaning defined at sense 1

Phrases Containing chief

• air chief marshal
• chief constable
• chief executive
• chief executive officer
• chief justice
• chief master sergeant
• chief master sergeant of the air force
• chief of naval operations
• chief of police
• chief of staff
• chief of state
• chief petty officer
• chief warrant officer
• commander in chief
• crew chief
• editor in chief
• fire chief
• in chief
• master chief petty officer
• master chief petty officer of the coast guard
• master chief petty officer of the navy
• senior chief petty officer
• sub-chief

Rhymes for chief

• beef
• brief
• fief
• grief
• leaf
• lief
• reef
• reif
• seif
• sheaf
• thief
• belief

Kids Definition

chief

1 of 2 adjective

ˈchēf 

1

: highest in rank or authority

chief librarian

2

: most important : main

your chief claim to fame

chief

2 of 2 noun

: the head of a group : leader

chief of police

Etymology

Noun

Middle English chief "top part, head," from early French chief "head, chief," from Latin caput "head" — related to capital, captain