Standard Lemma guide

cobalt

name · noun · 6 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈkəʊ.bɒlt/
  • /ˈkəʊ.bɔːlt/
  • US: kō'bôlt
  • US: /ˈkoʊ.bɔlt/
  • cot-caught-merger: /ˈkoʊ.bɑlt/
  • General-American: Recorded audio is listed in the source snapshot.
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: K OW1 B AO2 L T Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

name

Meaning 1

A village in Connecticut.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

A town in Ontario.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

name

Meaning 3

An unincorporated community in Idaho.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A chemical element (symbol Co) with an atomic number of 27: a hard, lustrous, silver-gray metal.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

Cobalt blue.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Co, atomic number 27

Antonyms: none provided

Broader terms: metallic element, metal

Narrower terms: cobalt 60

History

Etymology

From German Kobalt, formerly also Kobald, ‐olt, ‐old, ‐elt, ‐el, apparently the same word as Kobold (“goblin”), from Middle High German, which became also a Harz Mountains silver miners’ term for rock laced with arsenic and sulfur, so called because it degraded the ore and made the miners ill. Doublet of kobold.

Across languages

Translations

92 source translations are retained for this English entry.

  • Afrikaans: kobalt — chemical element
  • Albanian: kobalt — chemical element
  • Arabic: كُوبَلْت m or كُوبَالْت (kūbalt) — chemical element
  • Armenian: կոբալտ (kobalt) — chemical element
  • Asturian: cobaltu — chemical element
  • Azerbaijani: قوبالت (qobalt, kobalt) — chemical element
  • Azerbaijani: زرنخ داشى (zırnıkh dāshi) — chemical element
  • Azerbaijani: kobalt — chemical element
  • Basque: kobaltoa — chemical element
  • Belarusian: ко́бальт (kóbalʹt) — chemical element
  • Breton: kobalt — chemical element
  • Bulgarian: коба́лт (kobált) — chemical element
  • Burmese: ကိုဘော့ (kuibhau.) — chemical element
  • Catalan: cobalt — chemical element
  • Chinese Mandarin: 鈷 /钴 (gǔ) — chemical element
  • Cornish: cobolt — chemical element
  • Crimean Tatar: kobalt — chemical element
  • Crimean Tatar: zırnıq — chemical element
  • Czech: kobalt — chemical element
  • Danish: kobolt — chemical element
  • Dutch: kobalt — chemical element
  • Esperanto: kobalto — chemical element
  • Estonian: koobalt — chemical element
  • Faroese: kobolt — chemical element
  • Finnish: koboltti — chemical element
  • French: cobalt — chemical element
  • West-Frisian: kobalt — chemical element
  • Friulian: cobalt — chemical element
  • Galician: cobalto — chemical element
  • Georgian: კობალტი (ḳobalṭi) — chemical element
  • German: Kobalt — chemical element
  • Greek: κοβάλτιο (kováltio) — chemical element
  • Hebrew: קובלט (qóbalt) — chemical element
  • Hindi: केत्वातु (ketvātu) — chemical element
  • Hungarian: kobalt — chemical element
  • Icelandic: kóbalt — chemical element
  • Interlingua: cobalt — chemical element
  • Irish: cóbalt — chemical element
  • Italian: cobalto — chemical element
  • Japanese: コバルト (kobaruto) — chemical element
  • Kashubian: kabalt — chemical element
  • Kazakh: кобальт (kobalt) — chemical element
  • Khmer: កូបាល (koubaal) — chemical element
  • Korean: 코발트 (kobalteu) — chemical element
  • Kyrgyz: кобальт (kobalt) — chemical element
  • Lao: ໂຄບອລຕ໌ (khō bǭn ta) — chemical element
  • Latvian: kobalts — chemical element
  • Lingala: kobalti class 9a/10a — chemical element
  • Lithuanian: kobaltas — chemical element
  • Luxembourgish: Kobalt — chemical element
  • Macedonian: кобалт (kobalt) — chemical element
  • Malay: kobalt — chemical element
  • Maltese: kobalt — chemical element
  • Manx: cobalt — chemical element
  • Māori: koporata — chemical element
  • Marathi: कोबाल्ट (kobālṭa) — chemical element
  • Mongolian: кобальт (kobalʹt) — chemical element
  • Navajo: béésh łibáhí — chemical element
  • Norwegian Bokmål: kobolt — chemical element
  • Norwegian Nynorsk: kobolt — chemical element
  • Occitan: cobalt — chemical element
  • Persian: کبالت (kobâlt) — chemical element
  • Polish: kobalt — chemical element
  • Portuguese: cobalto — chemical element
  • Punjabi: ਕੋਬਾਲਟ (kobālaṭ) — chemical element
  • Romanian: cobalt — chemical element
  • Russian: ко́бальт (kóbalʹt) — chemical element
  • Scottish Gaelic: còbalt — chemical element
  • Serbo-Croatian: кобалт — chemical element
  • Serbo-Croatian: kobalt — chemical element
  • Slovak: kobalt — chemical element
  • Slovene: kobalt — chemical element
  • Spanish: cobalto — chemical element
  • Swahili: kobalti — chemical element
  • Swedish: kobolt — chemical element
  • Tagalog: kobalto — chemical element
  • Tajik: кобалт (kobalt) — chemical element
  • Tamil: மென்வெள்ளி (meṉveḷḷi) — chemical element
  • Tamil: கோபால்ட் (kōpālṭ) — chemical element
  • Thai: โคบอลต์ (koo-bɔ́l) — chemical element
  • Turkish: kobalt — chemical element
  • Ottoman Turkish: قوبالت (qōbālt) — chemical element
  • Ottoman Turkish: زرنيق طاشى (zırnıq taşı) — chemical element
  • Turkmen: kobalt — chemical element
  • Ukrainian: ко́бальт (kóbalʹt) — chemical element
  • Uyghur: كوبالت (kobalt) — chemical element
  • Uzbek: kobalt — chemical element
  • Uzbek: кобальт — chemical element
  • Vietnamese: coban — chemical element
  • Volapük: kobaltin — chemical element
  • Welsh: cobalt — chemical element
  • Yiddish: קאָבאַלט (kobalt) — chemical element
Real reading context

cobalt in complete knowledge articles