h vs Hai, What's the Difference?

Which to use

“h” is a symbol and “Hai” is a noun - they look or sound alike but fill different roles in a sentence.

#1,433
“h” frequency rank: #31,805
“Hai” frequency rank: 33238
confusion score

Side-by-Side Comparison

Feature	h	Hai
Definition	símbolo de hora:	tubarão

Letter map: h vs Hai

Shared letters muted; letters that set h and Hai apart highlighted. Shared run: 1.

1 ch

3 ch

Hai

Part-of-speech tell for h / Hai

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: h is asymbol and Haianoun. On the page they differ by 2 extra letter(s) - “h” sits inside “Hai”. Our composite confusion score for this pair is 33238, derived from the frequency rank of both members and their visual similarity.

h is recorded at frequency rank #1,433, classified as asymbol. Hai is at rank #31,805, tagged as anoun, pronounced /haɪ̯/ ouvir^(fonte ?).

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 33238, this pair ranks #34,329 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of h vs Hai

Shared letters: h. Private to "h": -. Private to "Hai": ai.

"h" · 1 letters · shape C · "Hai" · 3 letters · shape CVV

Frequently Asked Questions

Can "h" and "Hai" be used interchangeably?

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

Which is more common, "h" or "Hai"?

"h" is the more common of the two: it sits at frequency rank #1,433 in our Portuguese list, against #31,805 for "Hai". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

You've compared "h" and "Hai". Here's where to go from here.

Full dictionary entry for "h" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "Hai" - compare definitions side by side with the headword page. Word entry
This pair ranks #34,329 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"h" and "Hai" also get mixed up with nearby pairs, the highest-scored neighbour is "Hai vs hui". Nearby pair

Confusion rank #34,329 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.