DictionaryAI

sector

noun
USSEK-tur/ˈsɛk.təɹ/UKSEK-tuh/ˈsɛktə(r)/

Pluralsectors

11 meanings of sector

Practice

  1. 1
    part of economynouncountable
    A part of a country's economy that covers one kind of business or activity.

    Like sorting jobs into groups, where each group does one kind of work.

    The tech sector grew quickly last year.

    Many jobs in the farming sector were lost.

    UsageSay the public sector or the tech sector. Before a noun: public-sector jobs.

    Similarindustry, field, sphere, branch

    Note
  2. 2
    sectionnouncountable
    One part of a bigger area or thing, often with clear edges, like one section of a city or stadium.

    Like one slice of a whole pie.

    Our seats are in the north sector of the stadium.

    The map showed each sector in a different color.

  3. 3
    military areanouncountable
    The area that a group of soldiers is given to control or defend.

    Like being given one part of a yard to watch over.

    Soldiers guarded their sector through the night.

    Each unit was given a sector to defend.

    Note

Practice

Can you tell the meanings of sector apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origin

It comes from the Latin word "sector".

Checked 6 Nov 2026 · 1 fact