taivsterTell them apart

Quick tell: tai is a adjective, ter is a verb, so they fill different roles in a sentence.

Which to use

“tai” is an adjective and “ter” is a verb - they look or sound alike but fill different roles in a sentence.

#15,216
“tai” frequency rank
#60
“ter” frequency rank
15276
confusion score

Side-by-Side Comparison

Feature tai ter
Definition que pertence ao ramo das línguas tibeto-birmânicas que compreende o tai (tailandês) e o laociano acompanhado de verbo no particípio regular, indica ação passada

Where the eye mixes tai and ter

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

3 ch
tai
3 ch
ter

Why the eye confuses tai with ter

These two trip readers on the page rather than in the ear: tai is /ˈtaj/ while ter is /ˈteɹ/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 15276, 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/. ter is at rank #60, tagged as averb, pronounced /ˈteɹ/.

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 15276, this pair ranks #56,586 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of tai vs ter

Shared letters: t. Private to "tai": ai. Private to "ter": er.

"tai" · 3 letters · shape CVV  ·  "ter" · 3 letters · shape CVC

Frequently Asked Questions

Can "tai" and "ter" be used interchangeably?
No - they are not even the same part of speech. "tai" is an adjective and "ter" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "tai" or "ter"?
"ter" is the more common of the two: it sits at frequency rank #60 in our Portuguese list, against #15,216 for "tai". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "tai" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ter" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #56,586 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "tai" and "ter" also get mixed up with nearby pairs, the highest-scored neighbour is "tai vs til". Nearby pair

Confusion rank #56,586 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