ISSvsIvesTell them apart

Which to use

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

#16,055
“ISS” frequency rank
#23,012
“Ives” frequency rank
39067
confusion score

Side-by-Side Comparison

Feature ISS Ives
Definition Initialism of International Space Station. A surname originating as a patronymic.

Letter map: ISS vs Ives

Shared letters muted; letters that set ISS and Ives apart highlighted. Shared run: 2.

3 ch
ISS
4 ch
Ives

Spelling & dictionary notes on ISS vs Ives

ISS and Ives are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 39067, derived from the frequency rank of both members and their visual similarity.

ISS is recorded at frequency rank #16,055, classified as aname. Ives is at rank #23,012, tagged as aname, pronounced /aɪvz/.

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 39067, this pair ranks #280,139 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ISS vs Ives

Shared letters: is. Private to "ISS": -. Private to "Ives": ev.

"ISS" · 3 letters · shape VCC  ·  "Ives" · 4 letters · shape VCVC

Known mistypes of this pair

  • Ivesievs · ivess · ivse · ivves · vies

Frequently Asked Questions

Can "ISS" and "Ives" be used interchangeably?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Which is more common, "ISS" or "Ives"?
"ISS" is the more common of the two: it sits at frequency rank #16,055 in our English list, against #23,012 for "Ives". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "ISS" and "Ives".

  • Full dictionary entry for "ISS" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Ives" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #280,139 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ISS" and "Ives" also get mixed up with nearby pairs, the highest-scored neighbour is "ices vs Ives". 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 #280,139 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