bullfrog

/ˈbʊlfɹɒɡ/

//ˈbʊlfɹɒɡ// noun

"bullfrog" is a 8-letter English headword indexed on PlainSpell.

The verdict

“bullfrog” is uncommon English (frequency #63,484 among 4,121 “B” headwords), classed as a noun. The kind of spelling people second-guess.

#63,484
frequency rank, English
4,121
“B” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any of various frogs having a croak that resembles the bellow of a cow or bull.

Corpus desk

Index EN-bullfrog · bullfrog · English

bullfrog · rank #63,484 · 0 variants · 0 confusables

  • FREQ-RARE #63,484
  • LEN-LONG 8 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,121
  • PHOTO-FINISH BTEC

Nearest frequency peer: BTEC (-1 rank slots)

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.

Long-tail ranks near “bullfrog”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “bullfrog” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for bullfrog
PropertyValue
Headwordbullfrog
LanguageEnglish
Part of speechNoun
IPA/ˈbʊlfɹɒɡ/
Letters8
Frequency rank#63,484
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “bullfrog” in English

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

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

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “BTEC” (#63,483), “businesslike” (#63,485), “Callen” (#63,488). Among 4,121 “B” headwords, “bullfrog” is #63,484. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

bullfrog is uncommon English at frequency #63,484 among 4,121 “B” headwords, classed as anoun, transcribed /ˈbʊlfɹɒɡ/. Rarity is why readers land here mid-draft. Gloss: "Any of various frogs having a croak that resembles the bellow of a cow or bull.".

bullfrog doesn't appear in our generated misspelling index, suggesting the orthography follows predictable English patterns. We don't track a confusable pairing for this entry, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From bull + frog. The correct English form is bullfrog, spelled B-U-L-L-F-R-O-G.

Definition

  1. 1
    Any of various frogs having a croak that resembles the bellow of a cow or bull.

Recorded use

Wiktionary example

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

  1. The bull-frogs were also very large, and with voices proportionate to their size[.]

Etymology

From bull + frog.

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 "bullfrog"?
"bullfrog" is spelled B-U-L-L-F-R-O-G. The IPA pronunciation is /ˈbʊlfɹɒɡ/.
What does "bullfrog" mean?
As a noun, "bullfrog" means: Any of various frogs having a croak that resembles the bellow of a cow or bull.
How do you pronounce "bullfrog"?
The IPA (International Phonetic Alphabet) transcription for "bullfrog" is /ˈbʊlfɹɒɡ/. 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 "bullfrog"?
From bull + frog. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "bullfrog", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list