thavstiTell them apart

Quick tell: tha is a verb, ti is a pronoun, so they fill different roles in a sentence.

Which to use

“tha” is a verb and “ti” is a pronoun - they look or sound alike but fill different roles in a sentence.

#38,931
“tha” frequency rank
#779
“ti” frequency rank
39710
confusion score

Side-by-Side Comparison

Feature tha ti
Definition presente do verbo bi (ser, estar); sou/estou, é/está, somos/estamos, são/estão que diz respeito à tua pessoa

Where the eye mixes tha and ti

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
tha
2 ch
ti

Visual trap between tha and ti

These two trip readers on the page rather than in the ear: tha is /ha/ while ti is /ˈti/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 39710, derived from the frequency rank of both members and their visual similarity.

tha is recorded at frequency rank #38,931, classified as averb, pronounced /ha/. ti is at rank #779, tagged as apron, pronounced /ˈti/.

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 39710, this pair ranks #26,486 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of tha vs ti

Shared letters: t. Private to "tha": ah. Private to "ti": i.

"tha" · 3 letters · shape CCV  ·  "ti" · 2 letters · shape CV

Frequently Asked Questions

Can "tha" and "ti" be used interchangeably?
No - they are not even the same part of speech. "tha" is a verb and "ti" a pronoun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "tha" or "ti" show up more?
"ti" is the more common of the two: it sits at frequency rank #779 in our Portuguese list, against #38,931 for "tha". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "tha" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ti" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #26,486 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "tha" and "ti" also get mixed up with nearby pairs, the highest-scored neighbour is "tha vs tosa". Nearby pair

Confusion rank #26,486 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list