tha vs tio, What's the Difference?

Which to use

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

#38,931
“tha” frequency rank: #2,211
“tio” frequency rank: 41142
confusion score

Side-by-Side Comparison

Feature	tha	tio
Definition	presente do verbo bi (ser, estar); sou/estou, é/está, somos/estamos, são/estão	irmão da mãe ou do pai

Where the spellings diverge

Shared letters are muted; the letters that actually set tha and tio apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch

tha

3 ch

tio

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: tha is /ha/ while tio is /ti.u/ [t͡ʃiu̯], [tiu̯]. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 41142, 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/. tio is at rank #2,211, tagged as anoun, pronounced /ti.u/ [t͡ʃiu̯], [tiu̯].

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 41142, this pair ranks #24,847 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of tha vs tio

Shared letters: t. Private to "tha": ah. Private to "tio": io.

"tha" · 3 letters · shape CCV · "tio" · 3 letters · shape CVV

Frequency comparison

tha#38,931

tio#2,211

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "tha" and "tio" be used interchangeably?

No - they are not even the same part of speech. "tha" is a verb and "tio" a noun, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "tha" or "tio"?

"tio" is the more common of the two: it sits at frequency rank #2,211 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.

Remembering tha vs tio

The fastest way to pick the right one every time.

Check the role first: if you need a verb, it's “tha”; for a noun, it's “tio”.
See each word in full, definition, IPA, etymology and its other confusables. Full “tha” entry
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