tailvstassWhich spelling fits?

Which to use

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

#4,052
“tail” frequency rank
#46,807
“tass” frequency rank
50859
confusion score

Side-by-Side Comparison

Feature tail tass
Definition The caudal appendage of an animal that is attached to their posterior and near the anus or cloaca. A heap, pile.

Where the eye mixes tail and tass

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
tail
4 ch
tass

Look-alike desk: tail vs tass

A purely visual mix-up. tail (/teɪl/) 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 share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 50859, derived from the frequency rank of both members and their visual similarity.

tail is recorded at frequency rank #4,052, classified as anoun, pronounced /teɪl/. 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 50859, this pair ranks #170,520 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of tail vs tass

Shared letters: at. Private to "tail": il. Private to "tass": s.

"tail" · 4 letters · shape CVVC  ·  "tass" · 4 letters · shape CVCC

Known mistypes of this pair

  • tailatil · taill · tali · tial · ttail
  • tassatss · tas · tsas · ttass

Frequently Asked Questions

Can "tail" and "tass" be used interchangeably?
No. They are said differently (/teɪl/ versus /tæs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "tail" or "tass"?
"tail" is the more common of the two: it sits at frequency rank #4,052 in our English list, against #46,807 for "tass". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "tail" 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 #170,520 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "tail" 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 #170,520 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