Which to use
“ides” is a noun and “Indus” is a name - they look or sound alike but fill different roles in a sentence.
- #44,856
- “ides” frequency rank
- #26,126
- “Indus” frequency rank
- 70982
- confusion score
Side-by-Side Comparison
| Feature | ides | Indus |
|---|---|---|
| Definition | The notional full-moon day of a Roman month, occurring on the 15th day of the four original 31-day months (March, May, Quintilis or July, and October) and on the 13th day of all other months. | A major river in China, India and Pakistan, rising in Tibet and flowing into the Arabian Sea. |
Where the eye mixes ides and Indus
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses ides with Indus
These two trip readers on the page rather than in the ear: ides is /aɪdz/ while Indus is /ˈɪn.dəs/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 70982, derived from the frequency rank of both members and their visual similarity.
ides is recorded at frequency rank #44,856, classified as anoun, pronounced /aɪdz/. Indus is at rank #26,126, tagged as aname, pronounced /ˈɪn.dəs/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 70982, this pair ranks #48,478 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of ides vs Indus
Shared letters: dis. Private to "ides": e. Private to "Indus": nu.
"ides" · 4 letters · shape VCVC · "Indus" · 5 letters · shape VCCVC
Known mistypes of this pair
Frequently Asked Questions
Can "ides" and "Indus" be used interchangeably?
Frequency check: "ides" vs "Indus" - which ranks higher?
After this comparison
Eye-level mix-up between "ides" and "Indus" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "ides" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Indus" - compare definitions side by side with the headword page. Word entry
- This pair ranks #48,478 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "ides" and "Indus" also get mixed up with nearby pairs, the highest-scored neighbour is "ices vs ides". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #48,478 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.