Which to use
“ies” is a noun and “ISS” is a name - they look or sound alike but fill different roles in a sentence.
- #45,988
- “ies” frequency rank
- #16,055
- “ISS” frequency rank
- 62043
- confusion score
Side-by-Side Comparison
| Feature | ies | ISS |
|---|---|---|
| Definition | plural of i, the name of the letter I. | Initialism of International Space Station. |
Letter map: ies vs ISS
Shared letters muted; letters that set ies and ISS apart highlighted. Shared run: 2.
Role in the sentence - ies and ISS
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ies is anoun and ISSaname. On the page they differ by a single letter - e in “ies” becomes s in “ISS”. Our composite confusion score for this pair is 62043, derived from the frequency rank of both members and their visual similarity.
ies is recorded at frequency rank #45,988, classified as anoun. ISS is at rank #16,055, 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 62043, this pair ranks #90,683 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of ies vs ISS
Shared letters: is. Private to "ies": e. Private to "ISS": -.
"ies" · 3 letters · shape VVC · "ISS" · 3 letters · shape VCC
Frequently Asked Questions
Do "ies" and "ISS" mean the same thing in a sentence?
Which is more common, "ies" or "ISS"?
What to do next
You've compared "ies" and "ISS". Here's where to go from here.
- Full dictionary entry for "ies" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ISS" - compare definitions side by side with the headword page. Word entry
- This pair ranks #90,683 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "ies" and "ISS" also get mixed up with nearby pairs, the highest-scored neighbour is "ies vs ith". Nearby pair
Confusion rank #90,683 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.