Which to use
“tai” is an adjective and “tau” is a noun - they look or sound alike but fill different roles in a sentence.
- #15,216
- “tai” frequency rank
- #32,397
- “tau” frequency rank
- 47613
- confusion score
Side-by-Side Comparison
| Feature | tai | tau |
|---|---|---|
| Definition | que pertence ao ramo das línguas tibeto-birmânicas que compreende o tai (tailandês) e o laociano | nome da décima nona letra do alfabeto grego (Τ/τ) |
Where the spellings diverge
Shared letters are muted; the letters that actually set tai and tau apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: tai is /ˈtaj/ while tau is /taw/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - i in “tai” becomes u in “tau”, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 47613, derived from the frequency rank of both members and their visual similarity.
tai is recorded at frequency rank #15,216, classified as anadj, pronounced /ˈtaj/. 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 47613, this pair ranks #17,617 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of tai vs tau
Shared letters: at. Private to "tai": i. Private to "tau": u.
"tai" · 3 letters · shape CVV · "tau" · 3 letters · shape CVV
Frequency comparison
Frequently Asked Questions
Can "tai" and "tau" be used interchangeably?
Which is more common, "tai" or "tau"?
Remembering tai vs tau
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “tai”; for a noun, it's “tau”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “tai” entry
- Browse more pairs most likely to be confused. Most confusable