castrum

[…]

/[…]/ noun

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

The verdict

“castrum” is uncommon German (frequency #90,086 among 20,081 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#90,086
frequency rank, German
20,081
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - die Festung, das Fort, das Kastell, das Bollwerk

Key facts for castrum
PropertyValue
Headwordcastrum
LanguageGerman
Part of speechNoun
IPA[…]
Letters7
Frequency rank#90,086
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “castrum” sits in German frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). castrum lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

castrum is uncommon German at frequency #90,086 among 20,081 “C” headwords, classed as anoun, transcribed […]. Rarity is why readers land here mid-draft. 5 senses are on record.

Our edit-distance generator produced no likely misspellings for castrum, a straightforward case of a spelling with little room for common typos. Our dataset records no confusable match here, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

This headword's origin isn't recorded in our source data, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct German form is castrum, spelled C-A-S-T-R-U-M.

Definition

  1. 1
    die Festung, das Fort, das Kastell, das Bollwerk
  2. 2
    das Lager, das Quartier
  3. 3
    der Kriegsdienst
  4. 4
    der Tagesmarsch (weil jeden Abend ein Lager aufgeschlagen wurde)
  5. 5
    die Burg, das Schloss

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 "castrum"?
"castrum" is spelled C-A-S-T-R-U-M. The IPA pronunciation is […].
What does "castrum" mean?
As a noun, "castrum" means: die Festung, das Fort, das Kastell, das Bollwerk
How do you pronounce "castrum"?
The IPA (International Phonetic Alphabet) transcription for "castrum" is […]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "castrum" come from?
"castrum" 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.

Using “castrum”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct German spelling is C-A-S-T-R-U-M - every other letter order is a misspelling in standard orthography.
  • Say it as […] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more German words and confusable pairs in the same reference. German words

Other uncommon German words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list