knollvskrillWhich spelling fits?

Which to use

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

#32,887
“knoll” frequency rank
#45,475
“krill” frequency rank
78362
confusion score

Side-by-Side Comparison

Feature knoll krill
Definition A small mound or rounded hill. Any of several small marine crustacean species of plankton in the order Euphausiacea in the class Malacostraca.

Where the eye mixes knoll and krill

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. knoll and krill follow the identical consonant-vowel pattern (CCVCC). Same shape at a glance is often the real trap, independent of shared letters.

5 ch
knoll
5 ch
krill

Visual trap between knoll and krill

A purely visual mix-up. knoll (/nəʊl/) and krill (/kɹɪl/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 78362, derived from the frequency rank of both members and their visual similarity.

knoll is recorded at frequency rank #32,887, classified as anoun, pronounced /nəʊl/. krill is at rank #45,475, tagged as anoun, pronounced /kɹɪl/.

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 78362, this pair ranks #24,810 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of knoll vs krill

Shared letters: kl. Private to "knoll": no. Private to "krill": ir.

"knoll" · 5 letters · shape CCVCC  ·  "krill" · 5 letters · shape CCVCC

Known mistypes of this pair

  • knoll ← kknoll · knlol · knnoll · knol · konll · nkoll
  • krill ← kirll · kkrill · kril · krlil · krrill · rkill

Frequently Asked Questions

Do "knoll" and "krill" mean the same thing in a sentence?
No. They are said differently (/nəʊl/ versus /kɹɪl/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "knoll" or "krill"?
"knoll" is the more common of the two: it sits at frequency rank #32,887 in our English list, against #45,475 for "krill". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "knoll" and "krill" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "knoll" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "krill" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #24,810 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "knoll" and "krill" also get mixed up with nearby pairs, the highest-scored neighbour is "krill 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 #24,810 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