tarsusvstassConfusable pair

Which to use

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

#45,692
“tarsus” frequency rank
#46,807
“tass” frequency rank
92499
confusion score

Side-by-Side Comparison

Feature tarsus tass
Definition The part between the main part of the hindlimb and the metatarsus in terrestrial vertebrates. A heap, pile.

Where the eye mixes tarsus and tass

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. tarsus runs 6 letters (CVCCVC) against tass's 4 (CVCC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
tarsus
4 ch
tass

Look-alike desk: tarsus vs tass

A purely visual mix-up. tarsus (/ˈtɑː.səs/) and tass (/tæs/) 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 2 letter(s) in length. Our composite confusion score for this pair is 92499, derived from the frequency rank of both members and their visual similarity.

tarsus is recorded at frequency rank #45,692, classified as anoun, pronounced /ˈtɑː.səs/. tass is at rank #46,807, tagged as anoun, pronounced /tæs/.

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 92499, this pair ranks #2,584 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of tarsus vs tass

Shared letters: ast. Private to "tarsus": ru. Private to "tass": -.

"tarsus" · 6 letters · shape CVCCVC  ·  "tass" · 4 letters · shape CVCC

Known mistypes of this pair

  • tarsus ← atrsus · tarrsus · tarssu · tarssus · tarsuss · taruss · tasrus · trasus
  • tass ← atss · tas · tsas · ttass

Frequently Asked Questions

Can "tarsus" and "tass" be used interchangeably?
No. They are said differently (/ˈtɑː.səs/ versus /tæs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "tarsus" vs "tass" - which ranks higher?
"tarsus" is the more common of the two: it sits at frequency rank #45,692 in our English list, against #46,807 for "tass". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "tarsus" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tass" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #2,584 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "tarsus" and "tass" also get mixed up with nearby pairs, the highest-scored neighbour is "Taf vs tass". 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 #2,584 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