aquarium

/əˈkwɛɹ.i.jəm/

//əˈkwɛɹ.i.jəm// noun

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

"aquarium" is a 8-letter English headword indexed on PlainSpell.

The verdict

“aquarium” has 10 generated spelling variants in the English index at frequency #13,660. The variants make it a useful spelling check.

#13,660
frequency rank, English
35,202
“A” headwords
10
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A tank, often made of glass, for keeping live fish or other aquatic animals.

Visual similarity to commonly confused words

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

aquarium vs Aquarius
75% similar

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

Key facts for aquarium
PropertyValue
Headwordaquarium
LanguageEnglish
Part of speechNoun
IPA/əˈkwɛɹ.i.jəm/
Letters8
Frequency rank#13,660
Misspellings tracked10
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “aquarium” sits in English 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). aquarium lands here:

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

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

A misspelling magnet

The generator records 10 spelling variants around aquarium (IPA /əˈkwɛɹ.i.jəm/), anoun. Corpus frequency is #13,660 among 35,202 “A” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 10 likely wrong-spelling variants for aquarium, with forms such as "aqaurium", "aqquarium", and "aquairum". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 1 confusable-pair relationship, "Aquarius", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: Etymology tree Proto-Indo-European *h₂ékʷeh₂ Proto-Italic *akʷā Latin aqua Proto-Indo-European *-yósder. Proto-Italic *-āsios Latin -ārius Latin aquārius Latin aquāriumbor. English aquarium Borrowed from Latin aquārium, neuter of aquārius (“of or pertaining… The correct English form is aquarium, spelled A-Q-U-A-R-I-U-M.

Definition

  1. 1
    A tank, often made of glass, for keeping live fish or other aquatic animals.
  2. 2
    A public place where live fish and other aquatic animals are exhibited.

Etymology

Etymology tree Proto-Indo-European *h₂ékʷeh₂ Proto-Italic *akʷā Latin aqua Proto-Indo-European *-yósder. Proto-Italic *-āsios Latin -ārius Latin aquārius Latin aquāriumbor. English aquarium Borrowed from Latin aquārium, neuter of aquārius (“of or pertaining to water”), from aqua + -arium. Doublet of ewer; see also Aquarius. Also claimed to be coined by English naturalist Philip Henry Gosse, as a blend of aquatic + vivarium.

This word in other languages

acuario(Español)aquarium(Français)Aquarium(Deutsch)aquário(Português)

Common misspellings

Also misspelled as:

  • aqaurium
  • aqquarium
  • aquairum
  • aquarimu
  • aquariumm
  • aquarrium
  • aquaruim
  • aquraium
  • auqarium
  • qauarium

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of aquarium - 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.

aqaurium2aqquarium1aquairum2aquarimu2aquariumm1aquarrium1aquaruim2aquraium2
Edit distance from "aquarium"

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 "aquarium"?
"aquarium" is spelled A-Q-U-A-R-I-U-M. The IPA pronunciation is /əˈkwɛɹ.i.jəm/.
What does "aquarium" mean?
As a noun, "aquarium" means: A tank, often made of glass, for keeping live fish or other aquatic animals.
What words are commonly confused with "aquarium"?
"aquarium" is commonly confused with "Aquarius". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "aquarium"?
The IPA (International Phonetic Alphabet) transcription for "aquarium" is /əˈkwɛɹ.i.jəm/. 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 "aquarium"?
Etymology tree Proto-Indo-European *h₂ékʷeh₂ Proto-Italic *akʷā Latin aqua Proto-Indo-European *-yósder. Proto-Italic *-āsios Latin -ārius Latin aquārius Latin aquāriumbor. English aquarium Borrowed from Latin aquārium, neuter of aquārius (“of or ... 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.

Using “aquarium”

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

  • The one correct English spelling is A-Q-U-A-R-I-U-M - every other letter order is a misspelling in standard orthography.
  • Say it as /əˈkwɛɹ.i.jəm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “Aquarius” - see the side-by-side comparison. aquarium vs Aquarius
  • Browse more English words and confusable pairs in the same reference. English words

Same frequency band

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