Which to use
“tail” and “tau” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #34,941
- “tail” frequency rank
- #32,397
- “tau” frequency rank
- 67338
- confusion score
Side-by-Side Comparison
| Feature | tail | tau |
|---|---|---|
| Definition | rabo, cauda | nome da décima nona letra do alfabeto grego (Τ/τ) |
Where the eye mixes tail and tau
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. tail runs 4 letters (CVVC) against tau's 3 (CVV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between tail and tau
A purely visual mix-up. tail (/teɪl/) and tau (/taw/) 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 67338, derived from the frequency rank of both members and their visual similarity.
tail is recorded at frequency rank #34,941, classified as anoun, pronounced /teɪl/. tau is at rank #32,397, tagged as anoun, pronounced /taw/.
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 67338, this pair ranks #4,658 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of tail vs tau
Shared letters: at. Private to "tail": il. Private to "tau": u.
"tail" · 4 letters · shape CVVC · "tau" · 3 letters · shape CVV
Known mistypes of this pair
- tail ← atil · taill · tali · tial · ttail
Frequently Asked Questions
Do "tail" and "tau" mean the same thing in a sentence?
Which is more common, "tail" or "tau"?
What to do next
Eye-level mix-up between "tail" and "tau" 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 "tau" - compare definitions side by side with the headword page. Word entry
- This pair ranks #4,658 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "tail" and "tau" also get mixed up with nearby pairs, the highest-scored neighbour is "tail vs til". 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 #4,658 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.