What does sector mean?

Definitions for sector
ˈsɛk tərsec·tor

This dictionary definitions page includes all the possible meanings, example usage and translations of the word sector.

Princeton's WordNet

  1. sectornoun

    a plane figure bounded by two radii and the included arc of a circle

  2. sectornoun

    a social group that forms part of the society or the economy

    "the public sector"

  3. sector, spherenoun

    a particular aspect of life or activity

    "he was helpless in an important sector of his life"

  4. sectornoun

    the minimum track length that can be assigned to store information; unless otherwise specified a sector of data consists of 512 bytes

  5. sectornoun

    a portion of a military position

  6. sectornoun

    measuring instrument consisting of two graduated arms hinged at one end


  1. sectornoun


  2. sectornoun

    zone (designated area)

  3. sectornoun

    A part of a circle, extending to the center.

  4. sectornoun

    a fixed-sized unit (traditionally 512 bytes) of sequential data stored on a track of a digital medium (compare to block)

  5. sectornoun

    An area designated by boundaries within which a unit operates, and for which it is responsible.

  6. sectornoun

    One of the subdivisions of a coastal frontier.

  7. sectornoun

    a fictional region of space designated for navigational or governance purposes; for instance, W:Sector (Star Trek), W:List of Star Wars sectors

Samuel Johnson's Dictionary

  1. Sectornoun

    In geometry. Sector is an instrument made of wood or metal, with a joint, and sometimes a piece to turn out to make a true square, with lines of sines, tangents, secants, equal parts, rhumbs, polygons, hours, latitudes, metals and solids. It is generally useful in all the practical parts of the mathematicks, and particularly contrived for navigation, surveying, astronomy, dialling, and projection of the sphere. All the lines of the sector can be accommodated to any radius, which is done by taking off all divisions parallelwise, and not lengthwise; the ground of which practice is this, that parallels to the base of any plain triangle, bear the same proportion to it as the parts of the legs above the parallel do to the whole legs. John Harris

    Etymology: secteur, French.


  1. sector

    A sector is a distinct subset of a market, economy, industry, or society, whose components share similar characteristics and interests. This term can be used in various contexts such as economy (government, private, or public sector), mathematics (portion of a circle), computer storage (a portion of a storage device), and many others. The underlying concept is division or categorization based on different properties or characteristics.

Webster Dictionary

  1. Sectornoun

    a part of a circle comprehended between two radii and the included arc

  2. Sectornoun

    a mathematical instrument, consisting of two rulers connected at one end by a joint, each arm marked with several scales, as of equal parts, chords, sines, tangents, etc., one scale of each kind on each arm, and all on lines radiating from the common center of motion. The sector is used for plotting, etc., to any scale

  3. Sectornoun

    an astronomical instrument, the limb of which embraces a small portion only of a circle, used for measuring differences of declination too great for the compass of a micrometer. When it is used for measuring zenith distances of stars, it is called a zenith sector

  4. Etymology: [L., properly, a cutter, fr. secare, sectum, to cut: cf. F. secteur. See Section.]


  1. Sector

    Sector is an unincorporated community in Hampshire County in the U.S. state of West Virginia. It is located along the west bank of the South Branch Potomac River on Fleming-Sector Road across from Glebe. Sector grew in importance as a result of its operation of a post office and station on the South Branch Valley Railroad in the early 20th century. On the railroad, it was known as Glebe Station because it served Glebe across the South Branch. A suspension bridge once connected the two communities via Fleming-Sector Road, but it was demolished after a succession of serious floods, most recently in the late 1930s or early 1940s and has not been rebuilt since.

Chambers 20th Century Dictionary

  1. Sector

    sek′tur, n. that which cuts: that which is cut off: a portion of the circle between two radii and the intercepted arc: a mathematical instrument for finding a fourth proportional: an astronomical instrument: (mech.) a toothed gear, the face of which is the arc of a circle.—adjs. Sec′toral; Sectō′rial, adapted or intended for cutting.—n. a scissor-tooth. [L. sectorsecāre, to cut.]

Dictionary of Military and Associated Terms

  1. sector

    1. An area designated by boundaries within which a unit operates, and for which it is responsible. 2. One of the subdivisions of a coastal frontier. See also area of influence; zone of action.

Dictionary of Nautical Terms

  1. sector


Editors Contribution

  1. sector

    A particular facet of society.

    The various sectors were very efficient and effective working in unity with each other.

    Submitted by MaryC on March 1, 2020  

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'sector' in Spoken Corpus Frequency: #1188

  2. Written Corpus Frequency

    Rank popularity for the word 'sector' in Written Corpus Frequency: #1209

  3. Nouns Frequency

    Rank popularity for the word 'sector' in Nouns Frequency: #401

Anagrams for sector »

  1. corset

  2. coster

  3. escort

  4. rectos

  5. scoter

  6. scrote

  7. Tresco

  8. cortes

How to pronounce sector?

How to say sector in sign language?


  1. Chaldean Numerology

    The numerical value of sector in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of sector in Pythagorean Numerology is: 8

Examples of sector in a Sentence

  1. Steve Wang:

    I spend 70 percent of my time looking for healthcare deals in China, it's a really hot sector in China, as hot as mobile Internet.

  2. Gavin Parry:

    Japan's market is so liquid and has been so well conditioned to handle bad news since QQE first began that, in a way, bad news is good news sometimes, we're also seeing some positive reaction in machinery and construction to supply-side priming coming out of China, and the auto sector is getting a boost after China auto sales came out positive yesterday.

  3. Chiara Scaglia:

    The perception of the lingerie sector has changed, at the beginning many people we spoke to were confused as to why anybody should spend over $1,000 on panties for something nobody sees.

  4. Anders Levermann:

    It is really a global phenomenon - whichever sector... is hit by weather extremes is going to have the same response, the same problem.

  5. Dave Calhoun:

    The reality is the pandemic's impact on the aviation sector continues to be severe, while there have been some encouraging signs, we estimate it will take around three years to return to 2019 passenger levels.

Popularity rank by frequency of use


Translations for sector

From our Multilingual Translation Dictionary

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"sector." Definitions.net. STANDS4 LLC, 2024. Web. 13 Apr. 2024. <https://www.definitions.net/definition/sector>.

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    small cat-like predatory mammals of warmer parts of the Old World
    A viverrine
    B calcaneus
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