Prüfstein

[ˈpʁyːfˌʃtaɪ̯n]

/[ˈpʁyːfˌʃtaɪ̯n]/ noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“Prüfstein” is uncommon German (frequency #73,908 among 3,409 “P” headwords), classed as a noun. The kind of spelling people second-guess.

#73,908
frequency rank, German
3,409
“P” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Probierstein zur Feststellung der Zusammensetzung und des Reinheitsgrades von Edelmetallen

Corpus desk

Index DE-prufstein · Prüfstein · German

Prüfstein · rank #73,908 · 0 variants · 0 confusables

  • FREQ-RARE #73,908
  • LEN-LONG 9 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,409
  • PHOTO-FINISH Protektor

Nearest frequency peer: Protektor (-1 rank slots)

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Langschwanz-Ränge nahe „Prüfstein“

Dünnes Band: Balken invertieren den Rang, seltenere Formen wirken kürzer

corpus weight

What this shows Langschwanz-Sicht: wo „Prüfstein“ gegen ähnlich seltene deutsche Ränge sitzt.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for Prüfstein
PropertyValue
HeadwordPrüfstein
LanguageGerman
Part of speechNoun
IPA[ˈpʁyːfˌʃtaɪ̯n]
Letters9
Frequency rank#73,908
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Langschwanz-Rang von „Prüfstein“ im Deutschen

Von links nach rechts: die wenigen Träger des Alltags, dann der lange Schwanz kaum gebrauchter Formen.Prüfsteinfällt in diesen Seltenheitsbereich:

#1#100#1K#10K#100K
← used constantlyrarely used →

Die Skala ist logarithmisch (jeder Tick ≈ 10× seltener). Seltene Nachbarn derselben Bandbreite: „Protektor“ (#73,907), „psy“ (#73,909), „probierst“ (#73,906). Unter 3,409 „P“-Lemmata liegt „Prüfstein“ bei #73,908. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Prüfstein is uncommon German at frequency #73,908 among 3,409 “P” headwords, classed as anoun, transcribed [ˈpʁyːfˌʃtaɪ̯n]. Rarity is why readers land here mid-draft. 2 senses are on record.

Zero misspellings are on record for Prüfstein in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. This headword has no recorded confusable partner, which typically means the spelling is too distinctive to be mistaken for another word.

No borrowing history is documented for this entry, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct German form is Prüfstein, spelled P-R-Ü-F-S-T-E-I-N.

Definition

  1. 1
    Probierstein zur Feststellung der Zusammensetzung und des Reinheitsgrades von Edelmetallen
  2. 2
    entscheidender Test

Recorded use

Wiktionary examples

These source excerpts show how Prüfstein appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. „Ein Probierstein, auch Prüfstein oder lydischer Stein genannt, ist ein kleiner Reibstein, der zur Feststellung der Zusammensetzung und des Reinheitsgrades von Edelmetallen benutzt wird.“
  2. „Der so vorbereitete Prüfstein ist an einem staubfreien Ort aufzubewahren.“

Synonyms

ProbiersteinLackmustest

This word in other languages

touchstone(English)pierre de touche(Français)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 German corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Prüfstein"?
"Prüfstein" is spelled P-R-Ü-F-S-T-E-I-N. The IPA pronunciation is [ˈpʁyːfˌʃtaɪ̯n].
What does "Prüfstein" mean?
As a noun, "Prüfstein" means: Probierstein zur Feststellung der Zusammensetzung und des Reinheitsgrades von Edelmetallen
How do you pronounce "Prüfstein"?
The IPA (International Phonetic Alphabet) transcription for "Prüfstein" is [ˈpʁyːfˌʃtaɪ̯n]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "Prüfstein" come from?
"Prüfstein" is a German word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar German words by spelling shape

Same letter count and similar misspelling depth for "Prüfstein", not the corpus desk frequency band.

Same letter count

Frequency-ranked German headwords with 9 letters (nearest by frequency rank).

Protektor#73,907probierst#73,906pudelwohl#73,911principle#73,904

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

Source: FrequencyWords open word-frequency list