tax vs tio, What's the Difference?

Which to use

“tax” and “tio” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#35,800
“tax” frequency rank: #2,211
“tio” frequency rank: 38011
confusion score

Side-by-Side Comparison

Feature	tax	tio
Definition	apócope de táxi	irmão da mãe ou do pai

Where the eye mixes tax and tio

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. tax (CVC) and tio (CVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch

tax

3 ch

tio

Look-alike desk: tax vs tio

A purely visual mix-up. tax (/taks/) and tio (/ti.u/ [t͡ʃiu̯], [tiu̯]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 38011, derived from the frequency rank of both members and their visual similarity.

tax is recorded at frequency rank #35,800, classified as anoun, pronounced /taks/. 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 38011, this pair ranks #28,524 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of tax vs tio

Shared letters: t. Private to "tax": ax. Private to "tio": io.

"tax" · 3 letters · shape CVC · "tio" · 3 letters · shape CVV

Frequently Asked Questions

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

No. They are said differently (/taks/ versus /ti.u/ [t͡ʃiu̯], [tiu̯]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

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

"tio" is the more common of the two: it sits at frequency rank #2,211 in our Portuguese list, against #35,800 for "tax". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

Full dictionary entry for "tax" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "tio" - compare definitions side by side with the headword page. Word entry
This pair ranks #28,524 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"tax" and "tio" also get mixed up with nearby pairs, the highest-scored neighbour is "tax vs til". Nearby pair

Confusion rank #28,524 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.