A chef is a trained cook, usually one in charge of a professional kitchen: "The chef changes the menu every month." A chief is a leader — of a tribe, a department or a company: "She was appointed chief of surgery." Chef is pronounced "shef"; chief is pronounced "cheef".
The core difference
Chef belongs to food. Chief belongs to authority. English took both from French, where chef means head or leader; a chef is the head of a kitchen, from the fuller phrase chef de cuisine. That shared root is exactly why the two words look so similar and why learners mix them up.
Today they do not overlap. A chef cooks. A chief leads, and the word also works as an adjective meaning principal or most important.
How to use each
- Chef (noun only) — "He trained as a pastry chef in Lyon." "Ask the chef whether the soup is vegetarian."
- Chief (noun) — "The fire chief gave a statement." "She reports to the chief of staff."
- Chief (adjective) — "Cost was the chief objection." "Our chief concern is safety."
The test
Ask whether cooking is involved. If it is, the word is chef. If the sentence is about being in charge, or about something being the main or most important item, it is chief. "Chief executive" is a leader; "head chef" is a cook — and note that head chef is standard, while chief chef is not idiomatic despite meaning the same thing twice over.
For the spelling, use the sound. Chef has the sh sound, like shop, and rhymes with deaf. Chief has the ch sound, like church, and rhymes with leaf. Say the word aloud and the spelling follows.
Related words that help
Chief has a family: chiefly (mainly), chieftain (the leader of a clan). Chef has almost none in English — you will see it mainly in job titles such as sous chef, pastry chef and head chef. If you find yourself wanting an adverb, you want chiefly, never "chefly".
The mistake people actually make
The commonest error in writing is "the chief cooked a wonderful meal" when the writer means chef, or "the chef of police" when they mean chief. Both are straightforward slips of spelling rather than reasoning, and reading the sentence aloud usually catches them.
One more thing worth knowing: chef implies professional training or a professional kitchen. Someone who cooks well at home is a cook, not a chef — calling a home cook a chef is complimentary rather than accurate, and in a job description it would be misleading.
Frequently Asked Questions
Is it "chief chef" or "head chef"?
Head chef. It is the standard English term for the person running a kitchen. "Chief chef" is not idiomatic, even though chef itself comes from a French word meaning head.
How do you pronounce chef and chief?
Chef is "shef", rhyming with deaf, with the sh sound of shop. Chief is "cheef", rhyming with leaf, with the ch sound of church.
Can I call myself a chef if I cook at home?
Not accurately. Chef implies professional training or work in a commercial kitchen; someone who cooks at home is a cook. On a CV, the distinction matters.