iesvsIMOConfusable pair

Quick tell: ies is a noun, IMO is a name, so they fill different roles in a sentence.

Which to use

“ies” is a noun and “IMO” is a name - they look or sound alike but fill different roles in a sentence.

#45,988
“ies” frequency rank
#11,045
“IMO” frequency rank
57033
confusion score

Side-by-Side Comparison

Feature ies IMO
Definition plural of i, the name of the letter I. Initialism of International Maritime Organization.

Letter map: ies vs IMO

Shared letters muted; letters that set ies and IMO apart highlighted. Shared run: 1.

3 ch
ies
3 ch
IMO

Part-of-speech tell for ies / IMO

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ies is anoun and IMOaname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 57033, derived from the frequency rank of both members and their visual similarity.

ies is recorded at frequency rank #45,988, classified as anoun. IMO is at rank #11,045, tagged as aname.

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 57033, this pair ranks #122,032 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of ies vs IMO

Shared letters: i. Private to "ies": es. Private to "IMO": mo.

"ies" · 3 letters · shape VVC  ·  "IMO" · 3 letters · shape VCV

Frequently Asked Questions

Is swapping "ies" for "IMO" ever safe?
No - they are not even the same part of speech. "ies" is a noun and "IMO" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "ies" or "IMO" show up more?
"IMO" is the more common of the two: it sits at frequency rank #11,045 in our English list, against #45,988 for "ies". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "ies" vs "IMO" is on the table, pick a follow-up below.

  • Full dictionary entry for "ies" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "IMO" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #122,032 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ies" and "IMO" also get mixed up with nearby pairs, the highest-scored neighbour is "ies vs ith". Nearby pair

Confusion rank #122,032 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