conductor

American  

[kuhn-duhk-ter] / kənˈdʌk tər /

noun

1. a person who conducts; a leader, guide, director, or manager.

2. an employee on a bus, train, or other public conveyance, who is in charge of the conveyance and its passengers, collects fares or tickets, etc.

3. a person who directs an orchestra or chorus, communicating a specific interpretation of the music to the performers by motions of a baton or the hands

4. a substance, body, or device that readily conducts heat, electricity, sound, etc..

   Copper is a good conductor of electricity.

5. lightning rod.

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conductor British  

/ kənˈdʌktə, kənˈdʌktrɪs /

noun

1. an official on a bus who collects fares, checks tickets, etc

2. Also called (esp US): director.  a person who conducts an orchestra, choir, etc

3. a person who leads or guides

4. a railway official in charge of a train

5. a substance, body, or system that conducts electricity, heat, etc

6. See lightning conductor

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conductor Scientific  

/ kən-dŭk′tər /

1. A material or an object that conducts heat, electricity, light, or sound. Electrical conductors contain electric charges (usually electrons) that are relatively free to move through the material; a voltage applied across the conductor therefore creates an electric current. Insulators (electrical nonconductors) contain no charges that move when subject to a voltage.

2. Compare insulator See also resistance superconductivity

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conductor Cultural  

1. A material through which electric current (see also current) can pass. In general, metals are good conductors. Copper or aluminum is normally used to conduct electricity in commercial and household systems. (Compare insulator.)

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Other Word Forms

• conductorial adjective
• conductorship noun
• conductress noun
• multiconductor adjective
• preconductor noun

Etymology

Origin of conductor

First recorded in 1400–50; from Latin ( see conduce, -tor); replacing late Middle English cond(u)itour from Anglo-French, equivalent to Middle French conduiteur from Latin as above; see conduit

Explanation

A train conductor is the person who takes tickets, shouts "All aboard!" and might control the engine, while a musical conductor is the one who leads an orchestra. Same job title — not the same person. From the Latin root conducere, meaning "bring together," a conductor does just that. A music conductor makes sure all the musicians come in at the right time and tempo, and a train conductor brings together all of the passengers. Another type of conductor is something that passes on electricity or heat, like a metal spoon, a conductor of heat when left in a pot that's simmering on the stove.

Example Sentences

Before long, MTT became principal guest conductor, filling in frequently for Steinberg, who was in poor health.

From Los Angeles Times • Apr. 24, 2026

He may have seemed ready for a homecoming in 1981, but MTT’s appointment as principal guest conductor of the Los Angeles Philharmonic did not prove to be the return of the prodigal son.

From Los Angeles Times • Apr. 24, 2026

He retained the job through 1995, and then became the ensemble’s principal guest conductor until assuming the role of conductor laureate in 2016.

From The Wall Street Journal • Apr. 23, 2026

Born in Los Angeles, the celebrity conductor and former child prodigy, died Wednesday of glioblastoma, the New York Times wrote.

From Los Angeles Times • Apr. 23, 2026

The conductor is walking away from us now, shaking his head and muttering to himself as he plods through the empty train car.

From "The Sky at Our Feet" by Nadia Hashimi

Related Words

• director
• maestro
• manager
• master
• supervisor