fearsvsfleasWhich spelling fits?

Which to use

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

#5,416
“fears” frequency rank
#25,061
“fleas” frequency rank
30477
confusion score

Side-by-Side Comparison

Feature fears fleas
Definition plural of fear plural of flea

Where the eye mixes fears and fleas

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

5 ch
fears
5 ch
fleas

Visual trap between fears and fleas

A purely visual mix-up. fears (/fɪəz/) and fleas (/ˈfliːz/) 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 3 positions. Our composite confusion score for this pair is 30477, derived from the frequency rank of both members and their visual similarity.

fears is recorded at frequency rank #5,416, classified as anoun, pronounced /fɪəz/. fleas is at rank #25,061, tagged as anoun, pronounced /ˈfliːz/.

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 30477, this pair ranks #354,236 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fears vs fleas

Shared letters: aefs. Private to "fears": r. Private to "fleas": l.

"fears" · 5 letters · shape CVVCC  ·  "fleas" · 5 letters · shape CCVVC

Known mistypes of this pair

  • fearsefars · faers · fearrs · fearss · feasr · feras · ffears
  • fleasfelas · ffleas · flaes · fleass · flesa · flleas · lfeas

Frequently Asked Questions

Is swapping "fears" for "fleas" ever safe?
No. They are said differently (/fɪəz/ versus /ˈfliːz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "fears" or "fleas"?
"fears" is the more common of the two: it sits at frequency rank #5,416 in our English list, against #25,061 for "fleas". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "fears" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fleas" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #354,236 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "fears" and "fleas" also get mixed up with nearby pairs, the highest-scored neighbour is "fleas vs fleck". 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 #354,236 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