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📕 rednote ID(小红书号)：3881567312

Sector: Definition, Usage & Key Examples Explained (2 meaning)

Meaning 1：economic division (sector)

sector 🔊

/ˈsɛk.tər/

A specific part of a country's economy or society, like a slice of a large pie.

economic division 🔊

➕

/ɪˌkɒn.əˈmɪk dɪˈvɪʒ.ən/

Refers to a distinct segment of the economy or society, often specialized and comparable to a slice of a pie.

📁 Category：Social Economy 🔖 Level：Intermediate

📘 Details & Usage

📖 Root Explanation

From Latin 'sector' (cutter), from 'secare' (to cut).

💡 Mnemonic

Sector sounds like 'section', think of it as a cut piece of a pie or circle.

📖 Example

He found a well-paid job in the technology sector after graduating from university. 🔊 He found a well-paid job in the technology sector after graduating from university.

🔗 Collocations

private sector – the part of the economy not under government control

public sector – the part of the economy under government control

service sector – the part of the economy providing services

🔄 Synonyms

division (n.) – a separate part of something larger

segment (n.) – a part of something divided from the whole

branch (n.) – a subdivision of a larger organization or field

🚫 Antonyms

whole (n.) – the entire thing, not divided into parts

🌱 Derivatives

sectoral (adj.) – pertaining to or characteristic of a sector

📖 Cultural Story

The word 'sector' originates from Latin 'sector', meaning 'cutter', used in geometry for circle slices. Now common in economics for divisions like the technology sector.

Meaning 2：geometric slice (sector)

sector 🔊

/ˈsɛk.tər/

A part of a circle shaped like a slice of pizza, or a specific area that has been divided from a larger space.

Geometric sector concept shown as a slice being lifted from a whole pizza.

geometric slice 🔊

➕

/dʒiːəˈmetrɪk slaɪs/

A portion of a circle bounded by two radii and an arc, or a designated area within a larger space, resembling a slice of pizza.

📁 Category：Natural Geography 🔖 Level：Intermediate

📘 Details & Usage

📖 Example

The radar screen showed an unidentified object in the eastern sector of the monitored airspace. 🔊 The radar screen showed an unidentified object in the eastern sector of the monitored airspace.

🔗 Collocations

circular sector – the region of a circle enclosed by two radii and an arc

military sector – a designated area for military operations

urban sector – a specific part of a city

🔄 Synonyms

segment (n.) – a part of a geometric figure or area

portion (n.) – a part of a whole

zone (n.) – an area with a specified characteristic or use

🚫 Antonyms

whole (n.) – the complete area or circle

🌱 Derivatives

sectoral (adj.) – pertaining to or characteristic of a sector