Phrase guide

fool's gold

noun · 3 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 mineral or other substance often mistaken for gold; mainly iron pyrite.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Something worthless that deceptively seems valuable.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a common mineral (iron disulfide) that has a pale yellow color

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: pyrite, iron pyrite

Antonyms: none provided

Broader terms: mineral

History

Etymology

From the idea that the mineral fools people (especially those who are fools) into mistakenly thinking that they have found gold. Regarding minerals that were named for deceptive appearance that prompts confusion with others, compare also apatite.

Across languages

Translations

38 source translations are retained for this English entry.

  • Catalan: or dels ximples — mineral or other substance often mistaken for gold
  • Chinese Mandarin: 愚人金 (yúrén jīn) — mineral or other substance often mistaken for gold
  • Chinese Mandarin: 假黃金 /假黄金 (jiǎ huángjīn) — mineral or other substance often mistaken for gold
  • Czech: kočičí zlato — mineral or other substance often mistaken for gold
  • Danish: narreguld — mineral or other substance often mistaken for gold
  • Dutch: gekkengoud — mineral or other substance often mistaken for gold
  • Dutch: pyriet — mineral or other substance often mistaken for gold
  • Dutch: ijzerkies — mineral or other substance often mistaken for gold
  • Dutch: klatergoud — mineral or other substance often mistaken for gold
  • Dutch: het goud der dwazen — mineral or other substance often mistaken for gold
  • Finnish: kissankulta — mineral or other substance often mistaken for gold
  • Finnish: katinkulta — mineral or other substance often mistaken for gold
  • French: or des fous — mineral or other substance often mistaken for gold
  • West-Frisian: klettergoud — mineral or other substance often mistaken for gold
  • German: Katzengold — mineral or other substance often mistaken for gold
  • German: Narrengold — mineral or other substance often mistaken for gold
  • Greek: σιδηροπυρίτης (sidiropyrítis) — mineral or other substance often mistaken for gold
  • Greek: χαλκοπυρίτης (chalkopyrítis) — mineral or other substance often mistaken for gold
  • Hungarian: bolondok aranya — mineral or other substance often mistaken for gold
  • Icelandic: glópagull — mineral or other substance often mistaken for gold
  • Italian: oro di Bologna — mineral or other substance often mistaken for gold
  • Italian: similoro — mineral or other substance often mistaken for gold
  • Italian: oro degli stolti — mineral or other substance often mistaken for gold
  • Japanese: 愚か者の金 (orokamono no kin) — mineral or other substance often mistaken for gold
  • Japanese: 黄鉄鉱 (outekkou) — mineral or other substance often mistaken for gold
  • Korean: 바보의 금 (baboui geum) — mineral or other substance often mistaken for gold
  • Norwegian Bokmål: svovelkis — mineral or other substance often mistaken for gold
  • Norwegian Bokmål: pyritt — mineral or other substance often mistaken for gold
  • Norwegian Bokmål: narregull — mineral or other substance often mistaken for gold
  • Norwegian Nynorsk: svovelkis — mineral or other substance often mistaken for gold
  • Norwegian Nynorsk: pyritt — mineral or other substance often mistaken for gold
  • Portuguese: ouro dos tolos — mineral or other substance often mistaken for gold
  • Spanish: oro de los tontos — mineral or other substance often mistaken for gold
  • Spanish: oro de los pobres — mineral or other substance often mistaken for gold
  • Swedish: kattguld — mineral or other substance often mistaken for gold
  • Swedish: svavelkis — mineral or other substance often mistaken for gold
  • Swedish: pyrit — mineral or other substance often mistaken for gold
  • Thai: ทองคนโง่ (tɔɔng-kon-ngôo) — mineral or other substance often mistaken for gold