octad
/ˈɒktæd/
"octad" is a 5-letter English headword indexed on PlainSpell.
The verdict
“octad” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 5
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A group of eight things.
Corpus desk
Index EN-octad · octad · English
octad · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MID 5 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "O" thin
- PHOTO-UNK Peer pending
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.
| Property | Value |
|---|---|
| Headword | octad |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈɒktæd/ |
| Letters | 5 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “octad” in English
Rare enough to double-check
octad is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈɒktæd/. Rarity is why readers land here mid-draft. 2 senses are on record.
No misspelling variants are generated for octad in our index, a straightforward case of a spelling with little room for common typos. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From oct- + -ad. The correct English form is octad, spelled O-C-T-A-D.
Definition
- 1A group of eight things.
- 2hundred million = myriad myriad; 100,000,000 = 10⁸
Etymology
From oct- + -ad.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.