ampere

am·pere
A1M3P3E1R1E1
US/ˈæmˌpɪəɹ/US/ˌæmˈpɪəɹ/UK/ˈæmˌpɛər/

noun

A unit of electrical current, the standard base unit in the International System of Units; colloquially amp. Abbreviation: amp, Symbol: A

Similar
international ampereampA
Less commonScrabble 10

Meanings

ampere1

nounampere (plural amperes)

plural amperes · alternative ampère · alternative amp · alternative A

  1. A unit of electrical current, the standard base unit in the International System of Units; colloquially amp. Abbreviation: amp, Symbol: A

    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
    1 more example

    Definition: The ampere, symbol A, is the SI unit of electric current. It is defined by taking the fixed numerical value of the elementary charge e to be 1.602 176 634 x 10⁻¹⁹ when expressed in the unit C, which is equal to A s, where the second is defined in terms of Δν_(Cs). (The International Bureau of Weights and Measures)

Ampere2

proper nounAmpere (plural Amperes)

plural Amperes

  1. A surname from French

Synonyms & antonyms

nouna former unit of electric current (slightly smaller than the SI ampere)

Similar
international ampere
Broader
current unit

nounthe basic unit of electric current adopted under the Systeme International d'Unites

Similar
Broader
current unit
Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

ampere · noun

Named after French physicist André-Marie Ampère (1775–1836).

Full word history & related roots →

Ampere · proper noun

  1. FrenchAmpère
  2. EnglishAmpere

Borrowed from French Ampère

Full word history & related roots →

Translations

Arabic أَمْبِير
  • أَمْبِير (ʔambīr)unit of electrical current
Basque anpere
  • anpereunit of electrical current
Bulgarian а̀мпер
  • а̀мпер (àmper)unit of electrical current
Catalan ampere
  • ampereunit of electrical current
Chinese Mandarin 安培
  • 安培 (ānpéi)unit of electrical current
Czech ampér
  • ampérunit of electrical current
Dutch ampère
  • ampèreunit of electrical current
Esperanto ampero
  • amperounit of electrical current
Estonian amper
  • amperunit of electrical current
Finnish ampeeri
  • ampeeriunit of electrical current
French ampère, Ampère
  • ampèreunit of electrical current
  • AmpèreTranslations
German Ampere
  • Ampereunit of electrical current
Greek αμπέρ
  • αμπέρ (ampér)unit of electrical current
Hebrew אמפר
  • אמפרunit of electrical current
Hindi एम्पेयर
  • एम्पेयर (empeyar)unit of electrical current
Hungarian amper
  • amperunit of electrical current
Icelandic amper
  • amperunit of electrical current
Indonesian ampere
  • ampereunit of electrical current
Irish aimpéar
  • aimpéarunit of electrical current
Italian ampere
  • ampereunit of electrical current
Japanese アンペア
  • アンペア (anpea)unit of electrical current
Korean 암페어
  • 암페어 (ampeeo)unit of electrical current
Latvian ampērs
  • ampērsunit of electrical current
Lithuanian amperas
  • amperasunit of electrical current
Malay ampere, ampiar
  • ampereunit of electrical current
  • ampiarunit of electrical current
Māori wae iahiko
  • wae iahikounit of electrical current
Polish amper
  • amperunit of electrical current
Portuguese ampere
  • ampereunit of electrical current
Romanian amper
  • amperunit of electrical current
Russian ампе́р
  • ампе́р (ampér)unit of electrical current
Slovak ampér
  • ampérunit of electrical current
Spanish amperio, ampere
  • amperiounit of electrical current
  • ampereunit of electrical current
  • ampère (amper)unit of electrical current
Swahili ampea
  • ampeaunit of electrical current
Swedish ampere
  • ampereunit of electrical current
Tagalog amperyo
  • amperyounit of electrical current
Thai แอมแปร์
  • แอมแปร์unit of electrical current
Turkish amper
  • amperunit of electrical current
Ukrainian ампер
  • ампер (amper)unit of electrical current
Vietnamese ampe
  • ampeunit of electrical current
Yiddish אַמפּער
  • אַמפּער (amper)unit of electrical current
Cite this entry
APA

ampere. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/ampere

MLA

“ampere.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ampere. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “ampere,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/ampere.

Source: ampere on Wiktionary, CC BY-SA 4.0.