An example of chief used as an adjective is in the phrase the "chief issue" which means the most significant issue.
The chief magistrate.
The chief advantages.
An example of a chief is the head of a fire department.
- 1994, Nelson Mandela, Long Walk to Freedom, Abacus 2010, p. 4.My father, Gadla Henry Mphakanyiswa, was a chief by both blood and custom.
All firefighters report to the fire chief.
The chief scientist in the lab.
The chief ingredients in the stew.
- In the chief position; of highest title or authority.Editor in chief.
Idioms and Phrasal Verbs
Origin of chief
- Middle English chef from Old French from Latin caput head kaput- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition