Definition of chief

• n. - The head or leader of any body of men; a commander, as of an army; a head man, as of a tribe, clan, or family; a person in authority who directs the work of others; the principal actor or agent.
• n. - The principal part; the most valuable portion.
• n. - The upper third part of the field. It is supposed to be composed of the dexter, sinister, and middle chiefs.
• a. - Highest in office or rank; principal; head.
• a. - Principal or most eminent in any quality or action; most distinguished; having most influence; taking the lead; most important; as, the chief topic of conversation; the chief interest of man.
• a. - Very intimate, near, or close.