tho vs tio, What's the Difference?

Which to use

“tho” is an article and “tio” is an intj - they look or sound alike but fill different roles in a sentence.

#3,588
“tho” frequency rank: #43,420
“tio” frequency rank: 47008
confusion score

Side-by-Side Comparison

Feature	tho	tio
Definition	The (plural form); those.	Correct; that's right.

Where the eye mixes tho and tio

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch

tho

3 ch

tio

Look-alike desk: tho vs tio

These two trip readers on the page rather than in the ear: tho is /ðəʊ/ while tio is [tjoʔ˨˩]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - h in “tho” becomes i in “tio”, and the parts of speech differ too (article vs intj), which is usually the fastest check. Our composite confusion score for this pair is 47008, derived from the frequency rank of both members and their visual similarity.

tho is recorded at frequency rank #3,588, classified as anarticle, pronounced /ðəʊ/. tio is at rank #43,420, tagged as anintj, pronounced [tjoʔ˨˩].

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 47008, this pair ranks #206,430 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of tho vs tio

Shared letters: ot. Private to "tho": h. Private to "tio": i.

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

Frequently Asked Questions

Do "tho" and "tio" mean the same thing in a sentence?

No - they are not even the same part of speech. "tho" is an article and "tio" an intj, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "tho" vs "tio" - which ranks higher?

"tho" is the more common of the two: it sits at frequency rank #3,588 in our English list, against #43,420 for "tio". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

Full dictionary entry for "tho" 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 #206,430 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"tho" and "tio" also get mixed up with nearby pairs, the highest-scored neighbour is "Taf vs tio". Nearby pair

Confusion rank #206,430 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.