English Reference

Word

operator

Phoneticsop·er·a·tor, stress on the first syllable

US/ˈɑpɝˌeɪtɝ/

UK/ˈɒpəɹˌeɪtɐ/

Definitions

01machine/system user

B1 · Intermediate Countable noun

n. someone whose job is to use and control a machine or a piece of equipment.

n. a person who operates a specific machine, device, or system as their primary function.

“The crane operator moved the heavy steel beams with great care.”

“The factory requires a skilled operator to monitor the automated assembly line and intervene if the sensors detect a fault.”

02service company

B2 · Upper Intermediate Countable noun

n. a company that provides a public service, like transport or phones.

n. an organisation or business entity that manages and provides a specific utility or service.

“You should check with your mobile network operator about roaming charges.”

“The regional rail operator announced a new schedule to accommodate the increased volume of commuters during the summer months.”

03phone assistant

B1 · Intermediate Countable noun

n. a person who helps you make a phone call or gives you information over the phone.

n. a telecommunications professional who assists callers with connections, directory enquiries, or emergency services.

“I couldn't find the number, so I called the operator for help.”

“In the early days of telephony, every call had to be manually patched through by a central operator at a switchboard.”

Synonyms

telephonistdispatcher

04clever/shrewd person

C1 · Advanced Countable noun Informal

n. someone who is very good at making deals or getting what they want, sometimes in a dishonest way.

n. a person who is adept at manipulating situations or people to achieve their goals, often implying a lack of scruples.

“Watch out for him in business meetings; he is a smooth operator.”

“The CEO was known as a shrewd operator who could navigate complex political landscapes to secure the most profitable contracts for his firm.”

Synonyms

05math/logic symbol

C1 · Advanced Countable noun Mathematics Technical

n. a symbol in math or computer code that shows an action, like plus (+) or minus (-).

n. a character or symbol representing a specific mathematical or logical process or transformation.

“The plus sign is a basic mathematical operator used for addition.”

“The programmer used a logical operator to ensure the code only executed when both conditions were met simultaneously.”

Synonyms

06military specialist

C1 · Advanced Countable noun Technical

n. a member of a highly trained special forces military unit.

n. a member of a special operations unit, typically within a military or intelligence framework.

“The mission was carried out by a team of elite special forces operators.”

“As a highly trained operator, he was expected to maintain peak physical condition and master a wide array of tactical equipment.”

Collocations

Common phrases and expressions where native English speakers use the word “operator” in context.

Verb

01. contact the operator

“If you experience any technical difficulties, please contact the operator immediately.”

verb + noun

02. train the operator

“It takes approximately six months to fully train the operator on this complex system.”

verb + noun

Adjective

03. independent operator

“As an independent operator, she has the freedom to choose which clients she works with.”

adj + noun

04. skilled operator

“The factory is looking for a skilled operator to manage the new heavy machinery.”

adj + noun

05. smooth operator

“He is such a smooth operator that he managed to convince the board to double his budget.”

adj + noun

Noun

06. network operator

“The mobile network operator announced a significant upgrade to their 5G coverage.”

noun + noun

07. switchboard operator

“The switchboard operator transferred my call to the accounting department.”

noun + noun

08. tour operator

“We booked our entire safari through a local tour operator in Nairobi.”

noun + noun

Real-World Examples

“Eurotunnel, operator of LeShuttle, takes vehicles on the cross-Channel route.”
The Guardian 17 Aug 2026
“Most train operators have banned e-scooters on board for this reason.”
BBC News 22 Jul 2026

Etymology

Borrowed from Latin operātor, from operor (“work, labour”). Equivalent to operate + -or.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

Related words

Idioms

Domains

ComputingLinguisticsMathematicsMining

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Common
Level
B2 · Upper IntermediateOxford
Updated

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