HaivshiWhich spelling fits?

Quick tell: Hai is a noun, hi is a phrase, so they fill different roles in a sentence.

Which to use

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

#13,389
“Hai” frequency rank
#2,300
“hi” frequency rank
15689
confusion score

Side-by-Side Comparison

Feature Hai hi
Definition im Meer lebender Raubfisch (Überordnung Selachii) aus der Klasse der Knorpelfische freundschaftliche, familiäre mündliche Begrüßung bei persönlichen Begegnungen und Telefongesprächen, bei denen der Angerufene weiß, wer ihn anruft (so dass auf eine Nennung des Namens verzichtet werden kann)

Same sound, different letters: Hai vs hi

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 2 letters.

3 ch
Hai
2 ch
hi

Homophone desk: Hai vs hi

Say them out loud and nothing separates them: Hai and hi carry the same recorded pronunciation, [haɪ̯]. Grammar is what tells them apart: one is anoun, the other aphrase, so most sentences will only accept one of them. They differ by 1 letter(s) in length. Our composite confusion score for this pair is 15689, derived from the frequency rank of both members and their visual similarity.

Hai is recorded at frequency rank #13,389, classified as anoun, pronounced [haɪ̯]. hi is at rank #2,300, tagged as aphrase, pronounced [haɪ̯].

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 15689, this pair ranks #1,941,927 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Hai vs hi

Shared letters: hi. Private to "Hai": a. Private to "hi": -.

"Hai" · 3 letters · shape CVV  ·  "hi" · 2 letters · shape CV

Frequently Asked Questions

Can "Hai" and "hi" be used interchangeably?
No - they are not even the same part of speech. "Hai" is a noun and "hi" a phrase, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Hai" vs "hi" - which ranks higher?
"hi" is the more common of the two: it sits at frequency rank #2,300 in our German list, against #13,389 for "Hai". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Sound matches; spelling doesn't. Use the exits below to lock the right form or check a cousin pair.

  • Full dictionary entry for "Hai" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "hi" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,941,927 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Hai" and "hi" also get mixed up with nearby pairs, the highest-scored neighbour is "Hai vs haze". Nearby pair

Confusion rank #1,941,927 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list