covariant
"covariant" is a 9-letter English headword indexed on PlainSpell.
The verdict
“covariant” is uncommon English (frequency #77,564 among 5,599 “C” headwords), classed as an adjective. The kind of spelling people second-guess.
- #77,564
- frequency rank, English
- 5,599
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Which preserves the order of morphism composition: formally, which associates each morphism f:X→Y to a morphism F(f):F(X)→F(Y).
Corpus desk
Index EN-covariant · covariant · English
covariant · rank #77,564 · 0 variants · 0 confusables
- FREQ-RARE #77,564
- LEN-LONG 9 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 5,599
- PHOTO-FINISH Coverdale
Nearest frequency peer: Coverdale (+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 “covariant”
Sparse band: bars invert rank so rarer forms read shorter
- corpo
corpo
22,443 corpus weight
- cortege
cortege
22,441 corpus weight
- cosh
cosh
22,439 corpus weight
- covariant
covariant
22,437 corpus weight
- Coverdale
Coverdale
22,436 corpus weight
- crackled
crackled
22,435 corpus weight
What this shows Long-tail view: where “covariant” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | covariant |
| Language | English |
| Part of speech | Adjective |
| Letters | 9 |
| Frequency rank | #77,564 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “covariant” in English
Rare enough to double-check
covariant is uncommon English at frequency #77,564 among 5,599 “C” headwords, classed as anadjective. Rarity is why readers land here mid-draft. 2 senses are on record.
No generated misspelling entries exist for covariant in our index, since its letter pattern doesn't lend itself to common typo substitutions. We don't track a confusable pairing for this entry, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: From co- + variant. The correct English form is covariant, spelled C-O-V-A-R-I-A-N-T.
Definition
- 1Which preserves the order of morphism composition: formally, which associates each morphism f:X→Y to a morphism F(f):F(X)→F(Y).
- 2Using or relating to covariance.
Etymology
From co- + variant.
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 "covariant", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 9 letters (nearest by frequency rank).