firebug
"firebug" is a 7-letter English headword indexed on PlainSpell.
The verdict
“firebug” is uncommon English (frequency #88,337 among 2,507 “F” headwords), classed as a noun. The kind of spelling people second-guess.
- #88,337
- frequency rank, English
- 2,507
- “F” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Pyrrhocoris apterus, a common red and black insect, that is the type species of the family Pyrrhocoridae.
Corpus desk
Index EN-firebug · firebug · English
firebug · rank #88,337 · 0 variants · 0 confusables
- FREQ-RARE #88,337
- LEN-LONG 7 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,507
- PHOTO-FINISH fisc
Nearest frequency peer: fisc (+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 “firebug”
Sparse band: bars invert rank so rarer forms read shorter
- fetishist
fetishist
11,669 corpus weight
- Fierro
Fierro
11,666 corpus weight
- firebug
firebug
11,664 corpus weight
- fisc
fisc
11,663 corpus weight
- fishbone
fishbone
11,662 corpus weight
- flails
flails
11,659 corpus weight
What this shows Long-tail view: where “firebug” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | firebug |
| Language | English |
| Part of speech | Noun |
| Letters | 7 |
| Frequency rank | #88,337 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “firebug” in English
Rare enough to double-check
firebug is uncommon English at frequency #88,337 among 2,507 “F” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.
firebug doesn't appear in our generated misspelling index, which points to an orthography that plays by predictable English rules. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From fire + bug. The correct English form is firebug, spelled F-I-R-E-B-U-G.
Definition
- 1Pyrrhocoris apterus, a common red and black insect, that is the type species of the family Pyrrhocoridae.
- 2A pyromaniac or arsonist.
Recorded use
Wiktionary examplesThese source excerpts show how firebug appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
But the firebug allegedly ran back inside yelling before he finally took off.
In the video, she can be heard explaining to the firebugs that she has been working with victims of the wildfires that have destroyed thousands of homes and forced more than 100,000 people to evacuate.
Etymology
From fire + bug.
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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "firebug", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 7 letters (nearest by frequency rank).