ADJ

important, key
growing, growth
independent, private
public, state
voluntary
formal
informal
agricultural, banking, business, commercial, corporate, economic, financial, further/higher education, health, industrial, industry, manufacturing, market, primary, retail, service
The survey covers a wide range of industry sectors
rural, urban

PREP

in a/the ~
employment opportunities in the higher education sector

PHRASES

a sector of the economy/market

VERB + SECTOR

divide sth into
Berlin was divided into four sectors after the war

PHRASES

a sector of the population/society