Feststoff

[ˈfɛstˌʃtɔf]

/[ˈfɛstˌʃtɔf]/ noun

The verdict

“Feststoff” is uncommon German (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency German
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Substanz im festem Aggregatzustand

Corpus desk

Index DE-feststoff · Feststoff · German

Feststoff · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "F" thin
  • PHOTO-UNK Peer pending

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.

Key facts for Feststoff
PropertyValue
HeadwordFeststoff
LanguageGerman
Part of speechNoun
IPA[ˈfɛstˌʃtɔf]
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Langschwanz-Rang von „Feststoff“ im Deutschen

Feststoffliegt außerhalb der 100.000 häufigsten deutschen Wörter, im Langschwanz technischer, archaischer oder seltener Formen, genau dort, wo Schreibzweifeln zuschlagen.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Feststoff is uncommon German outside the top frequency list, classed as anoun, transcribed [ˈfɛstˌʃtɔf]. Rarity is why readers land here mid-draft. Gloss: "Substanz im festem Aggregatzustand".

Feststoff doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Our source data has no etymology on file for this entry, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct German form is Feststoff, spelled F-E-S-T-S-T-O-F-F.

Definition

  1. 1
    Substanz im festem Aggregatzustand

Recorded use

Wiktionary examples

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

  1. Die meisten chemischen Elemente sind bei Zimmertemperatur Feststoffe.
  2. „Die bei der Reaktion von Natrium mit Wasser entstandene Lösung wird als Natronlauge bezeichnet. In ihr ist Natriumhydroxid gelöst, ein mattweißer Feststoff.“

Antonyms

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Feststoff"?
"Feststoff" is spelled F-E-S-T-S-T-O-F-F. The IPA pronunciation is [ˈfɛstˌʃtɔf].
What does "Feststoff" mean?
As a noun, "Feststoff" means: Substanz im festem Aggregatzustand
How do you pronounce "Feststoff"?
The IPA (International Phonetic Alphabet) transcription for "Feststoff" is [ˈfɛstˌʃtɔf]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "Feststoff" come from?
"Feststoff" is a German word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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.

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

Source: FrequencyWords open word-frequency list