idesvsirisTell them apart

Which to use

“ides” and “iris” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#44,856
“ides” frequency rank
#10,228
“iris” frequency rank
55084
confusion score

Side-by-Side Comparison

Feature ides iris
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 plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms (See Iris (plant) on Wikipedia.Wikipedia).

Where the eye mixes ides and iris

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
ides
4 ch
iris

Visual trap between ides and iris

A purely visual mix-up. ides (/aɪdz/) and iris (/ˈaɪ.ɹɪs/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 55084, 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/. iris is at rank #10,228, tagged as anoun, pronounced /ˈaɪ.ɹɪs/.

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 55084, this pair ranks #136,274 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ides vs iris

Shared letters: is. Private to "ides": de. Private to "iris": r.

"ides" · 4 letters · shape VCVC  ·  "iris" · 4 letters · shape VCVC

Known mistypes of this pair

  • idesiddes · idess · idse · ieds
  • irisiirs · iriss · irris · irsi · riis

Frequently Asked Questions

Is swapping "ides" for "iris" ever safe?
No. They are said differently (/aɪdz/ versus /ˈaɪ.ɹɪs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "ides" or "iris" show up more?
"iris" is the more common of the two: it sits at frequency rank #10,228 in our English list, against #44,856 for "ides". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "ides" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "iris" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #136,274 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ides" and "iris" 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 #136,274 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list