fugu

/ˈfuː.ɡuː/

//ˈfuː.ɡuː// noun

"fugu" is a 4-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
4
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Blowfish: a delicacy popular in Japan served raw as sushi that may, if improperly prepared, contain deadly levels of neurotoxins.

Corpus desk

Index EN-fugu · fugu · English

fugu · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MID 4 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "F" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for fugu
PropertyValue
Headwordfugu
LanguageEnglish
Part of speechNoun
IPA/ˈfuː.ɡuː/
Letters4
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “fugu” in English

fugufalls 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

fugu is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈfuː.ɡuː/. Rarity is why readers land here mid-draft. Gloss: "Blowfish: a delicacy popular in Japan served raw as sushi that may, if improperly prepared, contain deadly levels of neurotoxins.".

No misspelling variants are generated for fugu in our index, suggesting the orthography follows predictable English patterns. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: Borrowed from Japanese 河豚(ふぐ) (fugu, “blowfish”). The correct English form is fugu, spelled F-U-G-U.

Definition

  1. 1
    Blowfish: a delicacy popular in Japan served raw as sushi that may, if improperly prepared, contain deadly levels of neurotoxins.

Recorded use

Wiktionary examples

These source excerpts show how fugu appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Twenty minutes later, the chef has successfully prepared a whole fugu—or puffer fish—a Japanese delicacy whose capacity to maim and kill is dividing the country’s culinary world.
  2. A sluggish swimmer, fugu has stunted fins and often flat-lying spikes instead of scales, and when confronted by predators it compensates for its lack of speed by swallowing enough water to swell up until its spikes stand on end, so it looks like an angry armored balloon.

Etymology

Borrowed from Japanese 河豚(ふぐ) (fugu, “blowfish”).

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 "fugu"?
"fugu" is spelled F-U-G-U. The IPA pronunciation is /ˈfuː.ɡuː/.
What does "fugu" mean?
As a noun, "fugu" means: Blowfish: a delicacy popular in Japan served raw as sushi that may, if improperly prepared, contain deadly levels of neurotoxins.
How do you pronounce "fugu"?
The IPA (International Phonetic Alphabet) transcription for "fugu" is /ˈfuː.ɡuː/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "fugu"?
Borrowed from Japanese 河豚(ふぐ) (fugu, “blowfish”). 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.

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

Source: FrequencyWords open word-frequency list