krillvsKrollWhich spelling fits?

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

Which to use

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

#45,475
“krill” frequency rank
#47,720
“Kroll” frequency rank
93195
confusion score

Side-by-Side Comparison

Feature krill Kroll
Definition Any of several small marine crustacean species of plankton in the order Euphausiacea in the class Malacostraca. A surname.

Letter map: krill vs Kroll

Shared letters muted; letters that set krill and Kroll apart highlighted. Shared run: 4. krill and Kroll follow the identical consonant-vowel pattern (CCVCC). Same shape at a glance is often the real trap, independent of shared letters.

5 ch
krill
5 ch
Kroll

Part-of-speech tell for krill / Kroll

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: krill is anoun and Krollaname. On the page they differ by a single letter - i in “krill” becomes o in “Kroll”. Our composite confusion score for this pair is 93195, derived from the frequency rank of both members and their visual similarity.

krill is recorded at frequency rank #45,475, classified as anoun, pronounced /kɹɪl/. Kroll is at rank #47,720, 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 93195, this pair ranks #2,092 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of krill vs Kroll

Shared letters: klr. Private to "krill": i. Private to "Kroll": o.

"krill" · 5 letters · shape CCVCC  ·  "Kroll" · 5 letters · shape CCVCC

Known mistypes of this pair

  • krill ← kirll · kkrill · kril · krlil · krrill · rkill
  • Kroll ← kkroll · korll · krlol · krol · krroll · rkoll

Frequently Asked Questions

Can "krill" and "Kroll" be used interchangeably?
No - they are not even the same part of speech. "krill" is a noun and "Kroll" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "krill" vs "Kroll" - which ranks higher?
"krill" is the more common of the two: it sits at frequency rank #45,475 in our English list, against #47,720 for "Kroll". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "krill" vs "Kroll" is on the table, pick a follow-up below.

  • Full dictionary entry for "krill" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Kroll" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #2,092 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "krill" and "Kroll" also get mixed up with nearby pairs, the highest-scored neighbour is "knell vs Kroll". 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 #2,092 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