corrin
"corrin" is a 6-letter English headword indexed on PlainSpell.
The verdict
“corrin” is uncommon English (frequency #73,989 among 43,570 “C” headwords), classed as a noun. The kind of spelling people second-guess.
- #73,989
- frequency rank, English
- 43,570
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A molecular species that contains four reduced pyrrole rings joined in a macrocycle by three -CH= groups and one direct bond; central to the cobalt-containing vitamin cobalamin.
| Property | Value |
|---|---|
| Headword | corrin |
| Language | English |
| Part of speech | Noun |
| Letters | 6 |
| Frequency rank | #73,989 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “corrin” sits in English frequency
Rare enough to double-check
corrin is uncommon English at frequency #73,989 among 43,570 “C” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A molecular species that contains four reduced pyrrole rings joined in a macrocycle by three -CH= groups and one direct bond; central to the cobalt-containing vitamin cobalamin.".
No misspelling variants are generated for corrin in our index, since its letter sequence doesn't invite the usual edit-distance slips. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.
No borrowing history is documented for this entry, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct English form is corrin, spelled C-O-R-R-I-N.
Definition
- 1A molecular species that contains four reduced pyrrole rings joined in a macrocycle by three -CH= groups and one direct bond; central to the cobalt-containing vitamin cobalamin.
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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Using “corrin”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is C-O-R-R-I-N - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
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.