ISPvsitsTell them apart

Quick tell: ISP is a noun, its is a determiner, so they fill different roles in a sentence.

Which to use

“ISP” is a noun and “its” is a determiner - they look or sound alike but fill different roles in a sentence.

#20,971
“ISP” frequency rank
#75
“its” frequency rank
21046
confusion score

Side-by-Side Comparison

Feature ISP its
Definition Initialism of interstellar polarization. Belonging to it.

Letter map: ISP vs its

Shared letters muted; letters that set ISP and its apart highlighted. Shared run: 2.

3 ch
ISP
3 ch
its

Role in the sentence - ISP and its

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ISP is anoun and itsadeterminer. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 21046, derived from the frequency rank of both members and their visual similarity.

ISP is recorded at frequency rank #20,971, classified as anoun. its is at rank #75, tagged as adet, pronounced /ɪts/.

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 21046, this pair ranks #426,793 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ISP vs its

Shared letters: is. Private to "ISP": p. Private to "its": t.

"ISP" · 3 letters · shape VCC  ·  "its" · 3 letters · shape VCC

Frequently Asked Questions

Do "ISP" and "its" mean the same thing in a sentence?
No - they are not even the same part of speech. "ISP" is a noun and "its" a determiner, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "ISP" or "its" show up more?
"its" is the more common of the two: it sits at frequency rank #75 in our English list, against #20,971 for "ISP". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pair "ISP" vs "its" is on the table, pick a follow-up below.

  • Full dictionary entry for "ISP" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "its" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #426,793 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ISP" and "its" also get mixed up with nearby pairs, the highest-scored neighbour is "ISP vs ith". Nearby pair

Confusion rank #426,793 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