apparatus

/ˌæp.əˈɹeɪ.təs/

//ˌæp.əˈɹeɪ.təs// noun

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

"apparatus" is a 9-letter English headword indexed on PlainSpell.

The verdict

“apparatus” has 11 generated spelling variants in the English index at frequency #9,848. The variants make it a useful spelling check.

#9,848
frequency rank, English
3,931
“A” headwords
11
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The entirety of means whereby a specific production is made existent or task accomplished.

Corpus desk

Index EN-apparatus · apparatus · English

apparatus · rank #9,848 · 11 variants · 1 confusable

  • FREQ-COMMON #9,848
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 1 pairs
  • VAR-MID 11 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH amended

Nearest frequency peer: amended (-1 rank slots)

Read with this headword: Spelling guide for this pattern

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.

Rank peers near misspelling magnet “apparatus”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “apparatus” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

apparatus vs asparagus
78% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for apparatus
PropertyValue
Headwordapparatus
LanguageEnglish
Part of speechNoun
IPA/ˌæp.əˈɹeɪ.təs/
Letters9
Frequency rank#9,848
Misspellings tracked11
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “apparatus”

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

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “amended” (#9,847), “Allison” (#9,846), “avengers” (#9,850). Among 3,931 “A” headwords, “apparatus” is #9,848. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 11 spelling variants around apparatus (IPA /ˌæp.əˈɹeɪ.təs/), anoun. Corpus frequency is #9,848 among 3,931 “A” headwords. Wiktionary lists 9 senses, so context still picks the gloss.

Our generated misspelling index lists 11 likely wrong-spelling variants for apparatus, with forms such as "apapratus", "aparatus", and "appaartus". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 1 confusable-pair relationship, "asparagus", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *perh₃-der. Latin parō Latin apparō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin apparātuslbor. English apparatus Learned borrowing fr… The correct English form is apparatus, spelled A-P-P-A-R-A-T-U-S.

Definition

  1. 1
    The entirety of means whereby a specific production is made existent or task accomplished.
  2. 2
    A complex machine or instrument.
  3. 3
    An assortment of tools and instruments.
  4. 4
    A bureaucratic organization, especially one influenced by political patronage.
  5. 5
    A vehicle used for emergency response.
  6. 6
    Any of the equipment on which the gymnasts perform their movements.
  7. 7
    Any of the objects that the gymnasts wield while performing and used as part of the performance itself.
  8. 8
    A complex, highly modified weapon (typically not a firearm); a weaponized “Rube Goldberg machine.”
  9. 9
    In an edition, a system of notations providing information, especially regarding variant readings of a text (a critical apparatus)

Recorded use

Wiktionary examples

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

  1. These television stations are part of the apparatus and power of Milosevic. This is the apparatus he has used to do the ethnic cleansing in Kosovo. It is the apparatus that keeps him in power and we are entirely justified as Nato allies in damaging and taking on those targets.
  2. Among the many good points Thomas Piketty makes in Capital in the Twenty First Century – his world-changing but surprisingly mild book – is that extreme inequality can be sustained politically only through an “apparatus of justification”.

Etymology

Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *perh₃-der. Latin parō Latin apparō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin apparātuslbor. English apparatus Learned borrowing from Latin apparātus. Doublet of apparat.

This word in other languages

aparato(Español)appareil(Français)Apparat(Deutsch)aparelho(Português)

Common misspellings

Also misspelled as:

  • apapratus
  • aparatus
  • appaartus
  • apparatsu
  • apparattus
  • apparatuss
  • apparauts
  • apparratus
  • appartaus
  • appraatus
  • paparatus

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of apparatus - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

apapratus2aparatus1appaartus2apparatsu2apparattus1apparatuss1apparauts2apparratus1
Edit distance from "apparatus"

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 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "apparatus"?
"apparatus" is spelled A-P-P-A-R-A-T-U-S. The IPA pronunciation is /ˌæp.əˈɹeɪ.təs/.
What does "apparatus" mean?
As a noun, "apparatus" means: The entirety of means whereby a specific production is made existent or task accomplished.
What words are commonly confused with "apparatus"?
"apparatus" is commonly confused with "asparagus". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "apparatus"?
The IPA (International Phonetic Alphabet) transcription for "apparatus" is /ˌæp.əˈɹeɪ.təs/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "apparatus"?
Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *perh₃-der. Latin parō Latin apparō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin apparātuslbor. English apparatus Learned bo... See the full etymology section above for more details.
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 English words by spelling shape

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

Same letter count

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

alignment#9,844academics#9,842commenced#9,861traumatic#9,832

Similar misspelling depth

Headwords with a similar count of attested misspellings (11 here; floor ≥5).

balcony11 variantsCalgary11 variantsChapman11 variantsdefinite11 variants

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

Source: FrequencyWords open word-frequency list