English Lexicon

Sector

/ˈsɛk.tər/
nounCEFR B2 (Upper)Top #1500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A distinct part or division of a larger whole, often used in contexts such as economics, geography, or mathematics.

    "The technology sector has seen significant growth in recent years."
  2. 2

    A geometric figure formed by two radii and the arc between them.

    "In geometry class, we learned how to calculate the area of a sector of a circle."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The word 'sector' originates from the Latin 'sectorem', meaning 'to cut'. It evolved through Middle French 'secteur' in the 14th century, referring to a part or division of a whole, particularly in geometry and later in various fields such as economics and industry.

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