HerrvshertzWhat's the difference?

Which to use

“Herr” and “hertz” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#32,434
“Herr” frequency rank
#38,836
“hertz” frequency rank
71270
confusion score

Side-by-Side Comparison

Feature Herr hertz
Definition Monsieur, appellation permettant de s’adresser de façon polie à un homme, normalement suivi par son nom de famille ou son titre. Unité de fréquence permettant de mesurer le nombre de fois où un événement cyclique survient par seconde et dont le symbole est Hz.

Where the eye mixes Herr and hertz

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. Herr runs 4 letters (CVCC) against hertz's 5 (CVCCC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
Herr
5 ch
hertz

Why the eye confuses Herr with hertz

A purely visual mix-up. Herr (\hɛʁ\) and hertz (^((h aspiré))\ɛʁts\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 71270, derived from the frequency rank of both members and their visual similarity.

Herr is recorded at frequency rank #32,434, classified as anoun, pronounced \hɛʁ\. hertz is at rank #38,836, tagged as anoun, pronounced ^((h aspiré))\ɛʁts\.

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 71270, this pair ranks #48,184 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of Herr vs hertz

Shared letters: ehr. Private to "Herr": -. Private to "hertz": tz.

"Herr" · 4 letters · shape CVCC  ·  "hertz" · 5 letters · shape CVCCC

Known mistypes of this pair

  • Herr ← ehrr · hherr · hrer
  • hertz ← ehrtz · herrtz · herttz · hertzz · herzt · hetrz · hhertz · hretz

Frequently Asked Questions

Can "Herr" and "hertz" be used interchangeably?
No. They are said differently (\hɛʁ\ versus ^((h aspiré))\ɛʁts\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "Herr" or "hertz" show up more?
"Herr" is the more common of the two: it sits at frequency rank #32,434 in our French list, against #38,836 for "hertz". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "Herr" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "hertz" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #48,184 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "Herr" and "hertz" also get mixed up with nearby pairs, the highest-scored neighbour is "hertz vs heurt". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #48,184 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