PersovsPerthWhich spelling fits?

Quick tell: Perso is a noun, Perth is a name, so they fill different roles in a sentence.

Which to use

“Perso” is a noun and “Perth” is a name - they look or sound alike but fill different roles in a sentence.

#40,129
“Perso” frequency rank
#33,224
“Perth” frequency rank
73353
confusion score

Side-by-Side Comparison

Feature Perso Perth
Definition amtlicher Ausweis mit Lichtbild, Unterschrift und Personalien des Inhabers Hauptstadt des australischen Bundesstaates Westaustralien

Where the eye mixes Perso and Perth

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
Perso
5 ch
Perth

Visual trap between Perso and Perth

These two trip readers on the page rather than in the ear: Perso is [ˈpɛʁzo] while Perth is [pɝθ]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 73353, derived from the frequency rank of both members and their visual similarity.

Perso is recorded at frequency rank #40,129, classified as anoun, pronounced [ˈpɛʁzo]. Perth is at rank #33,224, tagged as aname, pronounced [pɝθ].

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 73353, this pair ranks #362,688 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of Perso vs Perth

Shared letters: epr. Private to "Perso": os. Private to "Perth": ht.

"Perso" · 5 letters · shape CVCCV  ·  "Perth" · 5 letters · shape CVCCC

Known mistypes of this pair

  • Persoeprso · peros · perrso · persso · pesro · pperso · preso
  • Pertheprth · perht · perrth · perthh · pertth · petrh · pperth · preth

Frequently Asked Questions

Can "Perso" and "Perth" be used interchangeably?
No - they are not even the same part of speech. "Perso" is a noun and "Perth" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "Perso" or "Perth" show up more?
"Perth" is the more common of the two: it sits at frequency rank #33,224 in our German list, against #40,129 for "Perso". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "Perso" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Perth" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #362,688 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Perso" and "Perth" also get mixed up with nearby pairs, the highest-scored neighbour is "pars vs Perso". 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 #362,688 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