capsid
/ˈkæp.sɪd/
"capsid" is a 6-letter English headword indexed on PlainSpell.
The verdict
“capsid” is uncommon English (frequency #72,166 among 5,599 “C” headwords), classed as a noun. The kind of spelling people second-guess.
- #72,166
- frequency rank, English
- 5,599
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The outer protein shell of a virus.
Corpus desk
Index EN-capsid · capsid · English
capsid · rank #72,166 · 0 variants · 0 confusables
- FREQ-RARE #72,166
- LEN-LONG 6 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 5,599
- PHOTO-FINISH candler
Nearest frequency peer: candler (-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 “capsid”
Sparse band: bars invert rank so rarer forms read shorter
- C2C
C2C
27,840 corpus weight
- Calderwood
Calderwood
27,838 corpus weight
- candler
candler
27,836 corpus weight
- capsid
capsid
27,835 corpus weight
- carmaker
carmaker
27,833 corpus weight
- cartoony
cartoony
27,831 corpus weight
What this shows Long-tail view: where “capsid” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | capsid |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈkæp.sɪd/ |
| Letters | 6 |
| Frequency rank | #72,166 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “capsid” in English
Rare enough to double-check
capsid is uncommon English at frequency #72,166 among 5,599 “C” headwords, classed as anoun, transcribed /ˈkæp.sɪd/. Rarity is why readers land here mid-draft. Gloss: "The outer protein shell of a virus.".
No generated misspelling entries exist for capsid in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. This headword has no recorded confusable partner, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From French capside. The correct English form is capsid, spelled C-A-P-S-I-D.
Definition
- 1The outer protein shell of a virus.
Etymology
From French capside.
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 "capsid", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 6 letters (nearest by frequency rank).