fleasvsfleetsWhich spelling fits?

Which to use

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

#25,061
“fleas” frequency rank
#19,338
“fleets” frequency rank
44399
confusion score

Side-by-Side Comparison

Feature fleas fleets
Definition plural of flea plural of fleet

Where the eye mixes fleas and fleets

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

5 ch
fleas
6 ch
fleets

Why the eye confuses fleas with fleets

A purely visual mix-up. fleas (/ˈfliːz/) and fleets (/fliːts/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 44399, derived from the frequency rank of both members and their visual similarity.

fleas is recorded at frequency rank #25,061, classified as anoun, pronounced /ˈfliːz/. fleets is at rank #19,338, tagged as anoun, pronounced /fliːts/.

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 44399, this pair ranks #230,917 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fleas vs fleets

Shared letters: efls. Private to "fleas": a. Private to "fleets": t.

"fleas" · 5 letters · shape CCVVC  ·  "fleets" · 6 letters · shape CCVVCC

Known mistypes of this pair

  • fleasfelas · ffleas · flaes · fleass · flesa · flleas · lfeas
  • fleetsfelets · ffleets · fleest · fleetss · fleetts · fletes · flets · flleets

Frequently Asked Questions

Is swapping "fleas" for "fleets" ever safe?
No. They are said differently (/ˈfliːz/ versus /fliːts/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "fleas" vs "fleets" - which ranks higher?
"fleets" is the more common of the two: it sits at frequency rank #19,338 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.

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 "fleas" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fleets" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #230,917 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "fleas" and "fleets" 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 #230,917 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