hmvsHzTell them apart

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

Which to use

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

#16,903
“hm” frequency rank
#35,085
“Hz” frequency rank
51988
confusion score

Side-by-Side Comparison

Feature hm Hz
Definition Variante de hem et hmm. Symbole du hertz, unité de mesure de la fréquence dans le Système international.

Letter map: hm vs Hz

Shared letters muted; letters that set hm and Hz apart highlighted. Shared run: 1.

2 ch
hm
2 ch
Hz

Role in the sentence - hm and Hz

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: hm is anintj and Hzasymbol. On the page they differ by a single letter - m in “hm” becomes z in “Hz”. Our composite confusion score for this pair is 51988, derived from the frequency rank of both members and their visual similarity.

hm is recorded at frequency rank #16,903, classified as anintj, pronounced \m\. 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 51988, this pair ranks #150,983 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of hm vs Hz

Shared letters: h. Private to "hm": m. Private to "Hz": z.

"hm" · 2 letters · shape CC  ·  "Hz" · 2 letters · shape CC

Frequently Asked Questions

Do "hm" and "Hz" mean the same thing in a sentence?
No - they are not even the same part of speech. "hm" is an intj and "Hz" a symbol, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "hm" vs "Hz" - which ranks higher?
"hm" is the more common of the two: it sits at frequency rank #16,903 in our French list, against #35,085 for "Hz". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "hm" and "Hz". Here's where to go from here.

  • Full dictionary entry for "hm" 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 #150,983 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "hm" and "Hz" also get mixed up with nearby pairs, the highest-scored neighbour is "hae vs Hz". Nearby pair

Confusion rank #150,983 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