n. 25B6; noun
a Highland chief : LEADER, chieftain, head, headman, ruler, overlord, master, commander, seigneur, liege (lord), potentate.
the chief of the central bank : HEAD, principal, chief executive, president, chair, chairman, chairwoman, chairperson, governor, director, manager, manageress; employer, proprietor; N. Amer. chief executive officer, CEO; informal skipper, numero uno, (head) honcho, boss; Brit. informal gaffer, guv'nor; N. Amer. informal padrone, sachem.
25B6; adjective
the chief rabbi : HEAD, leading, principal, premier, highest, foremost, supreme, arch.
their chief aim : MAIN, principal, most important, primary, prime, first, cardinal, central, key, crucial, essential, pre-eminent, predominant, paramount, overriding; informal number-one.
arch-.
subordinate, minor.