Volt Meaning
/vəʊlt/Definition, CEFR level B2, pronunciation, examples, and quiz.
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Definition
nounIn the International System of Units, the derived unit of electrical potential and electromotive force (voltage); the potential difference across a conductor when a current of one ampere uses one watt of power. Symbol: V
nounA bright yellow-green colour often used in Nike products.
Sentence Examples
Liberia's new electrical system will be compatible with 220 volt European systems.
CEFR Practice Quiz
The car battery has a 12 ____ rating, which is standard for most vehicles.
CEFR Practice Quiz (Alternate)
A ____ is a unit of electrical potential difference, named after the Italian scientist Alessandro Volta early today.
Word Origin & History
Named after Italian physicist Alessandro Volta. For the surname, see Italian Volta.
Literary Quotations & Historical Citations
"If the volt, ampere and ohm were taken as the absolute units, the practical units would be the ampere, begohm and begavolt, names just as convenient as ampere, coulomb and farad."
— 1900, Journal of the Franklin Institute, volume 149, page 461:
"The system voltage is 630 volts d.c. and the supply to the trains is by top-contact third rail with running rail return."
— 1956 October, “Recent Changes on the Tyneside Electrified Lines”, in Railway Magazine, page 659:
"Each turbogenerator consisted of a steam turbine, powered by 900 psi of superheated steam, that was coupled by a set of reduction gears to a General Electric marine alternating-current generator operating at 1,800 rpm. Each generator had a capacity of 2,000 kilowatts of three-phase power at 450 volts and 60 hertz. The main 450-volt switchboard was energized by the two turbogenerators. The emergency switchboard, in the emergency generator room, was fed from the main switchboard through an electrical tie."
— 2017 December 12, National Transportation Safety Board, “1.3.5 Electrical Generation and Distribution System”, in Marine Accident Report: Sinking of US Cargo Vessel SS El Faro, Atlantic Ocean, Northeast of Acklins and Crooked Island, Bahamas, October 1, 2015, archived from the original on 15 May 2022, pages 36–37:
Explore More B2 Vocabulary Words
CEFR Practice Quiz
The car battery has a 12 ____ rating, which is standard for most vehicles.
CEFR Practice Quiz (Alternate)
A ____ is a unit of electrical potential difference, named after the Italian scientist Alessandro Volta early today.