fool's gold

noun

"fool-s-gold" is a 9-letter English headword indexed on PlainSpell.

The verdict

“fool's gold” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A mineral or other substance often mistaken for gold; mainly iron pyrite.

Key facts for fool's gold
PropertyValue
Headwordfool's gold
LanguageEnglish
Part of speechNoun
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “fool's gold” sits in English frequency

fool's gold falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

fool's gold is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

Zero misspellings are on record for fool's gold in our index, a sign its spelling follows regular English conventions. Our dataset records no confusable match here, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: 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. The correct English form is fool's gold, spelled F-O-O-L-'-S- -G-O-L-D.

Definition

  1. 1
    A mineral or other substance often mistaken for gold; mainly iron pyrite.
  2. 2
    Something worthless that deceptively seems valuable.

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.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "fool's gold"?
"fool's gold" is spelled F-O-O-L-'-S- -G-O-L-D.
What does "fool's gold" mean?
As a noun, "fool's gold" means: A mineral or other substance often mistaken for gold; mainly iron pyrite.
What is the origin of the word "fool's gold"?
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. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “fool's gold”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is F-O-O-L-'-S- -G-O-L-D - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list