InterpolvsintervalWhich spelling fits?

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

Which to use

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

#23,874
“Interpol” frequency rank
#10,068
“interval” frequency rank
33942
confusion score

Side-by-Side Comparison

Feature Interpol interval
Definition The International Criminal Police Organization, an international organization facilitating police cooperation. A distance in space.

Where the eye mixes Interpol and interval

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

8 ch
Interpol
8 ch
interval

Visual trap between Interpol and interval

These two trip readers on the page rather than in the ear: Interpol is /ˌʔin.teɾˈpol/ while interval is /ˈɪntəvəl/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 33942, derived from the frequency rank of both members and their visual similarity.

Interpol is recorded at frequency rank #23,874, classified as aname, pronounced /ˌʔin.teɾˈpol/. interval is at rank #10,068, tagged as anoun, pronounced /ˈɪntəvəl/.

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 33942, this pair ranks #325,041 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Interpol vs interval

Shared letters: eilnrt. Private to "Interpol": op. Private to "interval": av.

"Interpol" · 8 letters · shape VCCVCCVC  ·  "interval" · 8 letters · shape VCCVCCVC

Known mistypes of this pair

  • Interpolinetrpol · innterpol · inteprol · interopl · interplo · interpoll · interppol · interrpol
  • intervalinetrval · innterval · interavl · interrval · intervall · intervla · intervval · intevral

Frequently Asked Questions

Do "Interpol" and "interval" mean the same thing in a sentence?
No - they are not even the same part of speech. "Interpol" is a name and "interval" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Interpol" vs "interval" - which ranks higher?
"interval" is the more common of the two: it sits at frequency rank #10,068 in our English list, against #23,874 for "Interpol". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "Interpol" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "interval" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #325,041 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Interpol" and "interval" also get mixed up with nearby pairs, the highest-scored neighbour is "intercom vs Interpol". 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 #325,041 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