chief

chief adjective [ always before noun ] uk/tʃiːf/ us chief adjective [always before noun]
(HIGH RANK)

B2 highest in rank

старший, главный
chief economic adviser to the government

CHIEF noun

[ C ] uk/tʃiːf/ us chief noun [C]
(ORGANIZATION)

B2 a person who controls other people in an organization

начальник, глава
police chief s