Definitions for operatorˈɒp əˌreɪ tər

This page provides all possible meanings and translations of the word operator

Random House Webster's College Dictionary

op•er•a•torˈɒp əˌreɪ tər(n.)

  1. a person who operates a machine, apparatus, or the like.

  2. a person who operates a telephone switchboard.

    Category: Telegraphy and Telephony

  3. a person who manages an industrial establishment.

  4. a person who trades in securities, esp. speculatively or on a large scale.

  5. a person who performs a surgical operation; a surgeon.

  6. a symbol for expressing a mathematical or logical operation. a function, esp. one transforming a function, set, etc., into another.

    Category: Math

  7. a person who accomplishes his or her purposes by cleverness.

    Category: Informal

  8. a segment of DNA that interacts with a regulatory molecule, preventing transcription of the adjacent region.

    Category: Genetics

Origin of operator:

1590–1600; < LL

Princeton's WordNet

  1. operator(noun)

    (mathematics) a symbol or function representing a mathematical operation

  2. operator, manipulator(noun)

    an agent that operates some apparatus or machine

    "the operator of the switchboard"

  3. operator(noun)

    someone who owns or operates a business

    "who is the operator of this franchise?"

  4. hustler, wheeler dealer, operator(noun)

    a shrewd or unscrupulous person who knows how to circumvent difficulties

  5. operator(noun)

    a speculator who trades aggressively on stock or commodity markets

Kernerman English Learner's Dictionary

  1. operator(noun)ˈɒp əˌreɪ tər

    sb who operates a machine

    a fork-lift operator; a computer operator

  2. operatorˈɒp əˌreɪ tər

    a company offering a particular kind of service

    a tour/bus operator

  3. operatorˈɒp əˌreɪ tər

    sb who works for a company to connect telephone calls to the correct person

    Dial 0 to speak to an operator.


  1. operator(Noun)

    One who operates.

  2. operator(Noun)

    A telecommunications facilitator whose job is to establish temporary network connections.

  3. operator(Noun)

    A function or other mapping that carries variables defined on a domain into another variable or set of variables in a defined range.

  4. operator(Noun)

    Another name for Chinese whispers.

  5. operator(Noun)

    A person who is adept at making deals or getting results, especially one who uses questionable methods.

  6. operator(Noun)

    A member of a military Special Operations unit.

  7. operator(Noun)

    The administrator of a channel or network on IRC.


  1. Operator

    In basic mathematics, an operator is a symbol or function representing a mathematical operation. In terms of vector spaces, an operator is a mapping from one vector space or module to another. Operators are of critical importance to both linear algebra and functional analysis, and they find application in many other fields of pure and applied mathematics. For example, in classical mechanics, the derivative is used ubiquitously, and in quantum mechanics, observables are represented by linear operators. Important properties that various operators may exhibit include linearity, continuity, and boundedness.

British National Corpus

  1. Nouns Frequency

    Rank popularity for the word 'operator' in Nouns Frequency: #1380

Anagrams of operator

  1. aeroport

Translations for operator

Kernerman English Multilingual Dictionary


a person who works a machine

a lift operator.

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