Phrase guide

complex number

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A number of the form a + bi, where a and b are real numbers and i denotes the imaginary unit.

Definition source: English Wiktionary via Wiktextract

Topics: complex-analysis, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

(mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: complex quantity, imaginary number, imaginary

Antonyms: none provided

Broader terms: number

Narrower terms: complex conjugate, real number, real, pure imaginary number

History

Etymology

No etymology was provided for this word.

Across languages

Translations

52 source translations are retained for this English entry.

  • Afrikaans: komplekse getal — number of the form a + bi
  • Arabic: عَدَد عَقَدِيّّ — number of the form a + bi
  • Arabic: عَدَد مُرَكِّب (ʕadad murakkib) — number of the form a + bi
  • Armenian: կոմպլեքս թիվ (komplekʻs tʻiv) — number of the form a + bi
  • Azerbaijani: kompleks ədəd — number of the form a + bi
  • Bulgarian: компле́ксно число́ (kompléksno čisló) — number of the form a + bi
  • Burmese: ကွန်ပလက်စ်ကိန်း (kwanpa.lakckin:) — number of the form a + bi
  • Catalan: nombre complex — number of the form a + bi
  • Chinese Mandarin: 複數 /复数 (fùshù) — number of the form a + bi
  • Czech: komplexní číslo — number of the form a + bi
  • Danish: komplekst tal — number of the form a + bi
  • Dutch: complex getal — number of the form a + bi
  • Esperanto: kompleksa nombro — number of the form a + bi
  • Estonian: kompleksarv — number of the form a + bi
  • Faroese: komplekst tal — number of the form a + bi
  • Finnish: kompleksiluku — number of the form a + bi
  • French: nombre complexe — number of the form a + bi
  • Galician: número complexo — number of the form a + bi
  • Georgian: კომპლექსური რიცხვი (ḳomṗleksuri ricxvi) — number of the form a + bi
  • German: komplexe Zahl — number of the form a + bi
  • Greek: μιγαδικός αριθμός (migadikós arithmós) — number of the form a + bi
  • Hebrew: מספר מרוכב — number of the form a + bi
  • Hindi: सम्मिश्र संख्या (sammiśra saṅkhyā) — number of the form a + bi
  • Hungarian: komplex szám — number of the form a + bi
  • Icelandic: tvinntala — number of the form a + bi
  • Indonesian: bilangan kompleks — number of the form a + bi
  • Italian: numero complesso — number of the form a + bi
  • Japanese: 複素数 (fukusosū) — number of the form a + bi
  • Khmer: ចំនួនកុំផ្លិច (cɑmnuənkomphləc) — number of the form a + bi
  • Korean: 복소수 (boksosu) — number of the form a + bi
  • Northern Kurdish: hejmara kompleks — number of the form a + bi
  • Northern Kurdish: jimareya tevlihev — number of the form a + bi
  • Malay: nombor kompleks — number of the form a + bi
  • Māori: tau hiato — number of the form a + bi
  • Māori: tau matatini — number of the form a + bi
  • Norwegian Bokmål: komplekst tall — number of the form a + bi
  • Norwegian Nynorsk: komplekst tal — number of the form a + bi
  • Polish: liczba zespolona — number of the form a + bi
  • Portuguese: número complexo — number of the form a + bi
  • Romanian: număr complex — number of the form a + bi
  • Russian: ко́мплексное число́ (kómpleksnoje čisló) — number of the form a + bi
  • Russian: компле́ксное число́ (kompléksnoje čisló) — number of the form a + bi
  • Serbo-Croatian: комплексни брой — number of the form a + bi
  • Serbo-Croatian: kompleksni broj — number of the form a + bi
  • Sicilian: nummuru complessu — number of the form a + bi
  • Spanish: número complejo — number of the form a + bi
  • Swedish: komplext tal — number of the form a + bi
  • Tagalog: bilang na hugnay — number of the form a + bi
  • Thai: จํานวนเชิงซ้อน (jam nuan cherng són) — number of the form a + bi
  • Turkish: karmaşık sayı — number of the form a + bi
  • Turkish: kompleks sayı — number of the form a + bi
  • Vietnamese: số phức — number of the form a + bi