regulus
"regulus" is a 7-letter English headword indexed on PlainSpell.
The verdict
“regulus” is uncommon English (frequency #66,978 among 3,094 “R” headwords), classed as a noun. The kind of spelling people second-guess.
- #66,978
- frequency rank, English
- 3,094
- “R” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An impure metal formed beneath slag during the smelting of ores.
Corpus desk
Index EN-regulus · regulus · English
regulus · rank #66,978 · 0 variants · 0 confusables
- FREQ-RARE #66,978
- LEN-LONG 7 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,094
- PHOTO-FINISH reevaluation
Nearest frequency peer: reevaluation (-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 “regulus”
Sparse band: bars invert rank so rarer forms read shorter
- reductionist
reductionist
33,025 corpus weight
- reevaluation
reevaluation
33,024 corpus weight
- regulus
regulus
33,023 corpus weight
- rehydration
rehydration
33,022 corpus weight
- Reigate
Reigate
33,021 corpus weight
- reined
reined
33,020 corpus weight
What this shows Long-tail view: where “regulus” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | regulus |
| Language | English |
| Part of speech | Noun |
| Letters | 7 |
| Frequency rank | #66,978 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “regulus” in English
Rare enough to double-check
regulus is uncommon English at frequency #66,978 among 3,094 “R” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "An impure metal formed beneath slag during the smelting of ores.".
Zero misspellings are on record for regulus in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: Borrowed from Latin regulus. The correct English form is regulus, spelled R-E-G-U-L-U-S.
Definition
- 1An impure metal formed beneath slag during the smelting of ores.
Etymology
Borrowed from Latin regulus.
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 "regulus", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 7 letters (nearest by frequency rank).