fish tank

noun

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

The verdict

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

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A container, usually made out of glass or acrylic, specifically designed for holding water and marine life.

Corpus desk

Index EN-fish-tank · fish tank · English

fish tank · 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

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.

Key facts for fish tank
PropertyValue
Headwordfish tank
LanguageEnglish
Part of speechNoun
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “fish tank” in English

fish tankfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

fish tank is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

Zero misspellings are on record for fish tank in our index, typically a sign the spelling maps closely to how the word sounds. No close-neighbour confusable shows up for this headword in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.

No documented word history exists for this headword, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is fish tank, spelled F-I-S-H- -T-A-N-K.

Definition

  1. 1
    A container, usually made out of glass or acrylic, specifically designed for holding water and marine life.
  2. 2
    A section of a prison for newly arrived inmates.

Recorded use

Wiktionary example

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

  1. I sprinkled little flakes into the fish tank for the guppies to eat.

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 "fish tank"?
"fish tank" is spelled F-I-S-H- -T-A-N-K.
What does "fish tank" mean?
As a noun, "fish tank" means: A container, usually made out of glass or acrylic, specifically designed for holding water and marine life.
What language does "fish tank" come from?
"fish tank" is a English 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.

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

Source: FrequencyWords open word-frequency list