guppy

/ˈɡʌpi/

//ˈɡʌpi// noun

"guppy" is a 5-letter English headword indexed on PlainSpell.

The verdict

“guppy” is an uncommon English word, ranked #53,583 in English word frequency and used as a noun.

#53,583
frequency rank, English
5
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A tiny freshwater fish, Poecilia reticulata, popular in home aquariums, that usually has a plain body and black or dark blue tail for the females and a more colorful tail for the males. The guppies...

Key facts for guppy
PropertyValue
Headwordguppy
LanguageEnglish
Part of speechNoun
IPA/ˈɡʌpi/
Letters5
Frequency rank#53,583
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “guppy” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). guppy lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for guppy is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈɡʌpi/. Corpus data places it at rank #53,583 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 16 distinct senses for this headword, so context determines which meaning a reader should apply.

We couldn't generate a plausible misspelling set for guppy, which points to an orthography that plays by predictable English rules. No close-neighbour confusable shows up for this headword in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From a name mistakenly assigned, Girardinus guppii, after biologist Robert J. L. Guppy, to previously assigned Poecilia reticulata. The correct English form is guppy, spelled G-U-P-P-Y.

Definition

  1. 1
    A tiny freshwater fish, Poecilia reticulata, popular in home aquariums, that usually has a plain body and black or dark blue tail for the females and a more colorful tail for the males. The guppies can vary in size, but males are 4 cm (1.6”) and females are 7 cm (2.8”).
  2. 2
    Any tiny fish.
  3. 3
    A tube holding paintballs before they are loaded into the gun.
  4. 4
    A hold across the palm of the hand rather than the fingertips.
  5. 5
    Acanthocephalus guppii
  6. 6
    Acanthocephalus reticulatus
  7. 7
    Girardinus guppii
  8. 8
    Girardinus petersi
  9. 9
    Girardinus poeciloides
  10. 10
    Girardinus reticulatus
  11. 11
    Haridichthys reticulatus
  12. 12
    Heterandria guppyi
  13. 13
    Lebistes poecilioides
  14. 14
    Lebistes reticulatus
  15. 15
    Poecilia poeciloides
  16. 16
    Poecilioides reticulatus

Etymology

From a name mistakenly assigned, Girardinus guppii, after biologist Robert J. L. Guppy, to previously assigned Poecilia reticulata.

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); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "guppy"?
"guppy" is spelled G-U-P-P-Y. The IPA pronunciation is /ˈɡʌpi/.
What does "guppy" mean?
As a noun, "guppy" means: A tiny freshwater fish, Poecilia reticulata, popular in home aquariums, that usually has a plain body and black or dark blue tail for the females and a more colorful tail for the males. The guppies...
How do you pronounce "guppy"?
The IPA (International Phonetic Alphabet) transcription for "guppy" is /ˈɡʌpi/. 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 "guppy"?
From a name mistakenly assigned, Girardinus guppii, after biologist Robert J. L. Guppy, to previously assigned Poecilia reticulata. 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 “guppy”

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

  • The one correct English spelling is G-U-P-P-Y - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈɡʌpi/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • 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