haevsHzWhat's the difference?

Quick tell: hae is a noun, Hz is a symbol, so they fill different roles in a sentence.

Which to use

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

#49,121
“hae” frequency rank
#35,085
“Hz” frequency rank
84206
confusion score

Side-by-Side Comparison

Feature hae Hz
Definition Kava. Symbole du hertz, unité de mesure de la fréquence dans le Système international.

Letter map: hae vs Hz

Shared letters muted; letters that set hae and Hz apart highlighted. Shared run: 1. hae runs 3 letters (CVV) against Hz's 2 (CC) - the length gap alone is often enough to separate them once you know to check it.

3 ch
hae
2 ch
Hz

Role in the sentence - hae and Hz

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: hae is anoun and Hzasymbol. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 84206, derived from the frequency rank of both members and their visual similarity.

hae is recorded at frequency rank #49,121, classified as anoun, pronounced \hae\. Hz is at rank #35,085, tagged as asymbol.

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 84206, this pair ranks #13,396 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of hae vs Hz

Shared letters: h. Private to "hae": ae. Private to "Hz": z.

"hae" · 3 letters · shape CVV  ·  "Hz" · 2 letters · shape CC

Frequently Asked Questions

Can "hae" and "Hz" be used interchangeably?
No - they are not even the same part of speech. "hae" is a noun and "Hz" a symbol, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "hae" or "Hz" show up more?
"Hz" is the more common of the two: it sits at frequency rank #35,085 in our French list, against #49,121 for "hae". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "hae" vs "Hz" is on the table, pick a follow-up below.

  • Full dictionary entry for "hae" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Hz" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #13,396 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "hae" and "Hz" also get mixed up with nearby pairs, the highest-scored neighbour is "hae vs Hatem". Nearby pair

Confusion rank #13,396 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list