terrarium
/təˈɹɛəɹ.ɪ.əm/
"terrarium" is a 9-letter English headword indexed on PlainSpell.
The verdict
“terrarium” is uncommon English (frequency #62,567 among 3,151 “T” headwords), classed as a noun. The kind of spelling people second-guess.
- #62,567
- frequency rank, English
- 3,151
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An enclosure wherein small animals are displayed, usually with some plants, in a naturalistic setting.
Corpus desk
Index EN-terrarium · terrarium · English
terrarium · rank #62,567 · 0 variants · 0 confusables
- FREQ-RARE #62,567
- LEN-LONG 9 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,151
- PHOTO-FINISH tetrahedral
Nearest frequency peer: tetrahedral (+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.
Long-tail ranks near “terrarium”
Sparse band: bars invert rank so rarer forms read shorter
- tej
tej
37,437 corpus weight
- tendinitis
tendinitis
37,436 corpus weight
- terrarium
terrarium
37,434 corpus weight
- tetrahedral
tetrahedral
37,433 corpus weight
- thespian
thespian
37,432 corpus weight
- Thibodeau
Thibodeau
37,431 corpus weight
What this shows Long-tail view: where “terrarium” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | terrarium |
| Language | English |
| Part of speech | Noun |
| IPA | /təˈɹɛəɹ.ɪ.əm/ |
| Letters | 9 |
| Frequency rank | #62,567 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “terrarium” in English
Rare enough to double-check
terrarium is uncommon English at frequency #62,567 among 3,151 “T” headwords, classed as anoun, transcribed /təˈɹɛəɹ.ɪ.əm/. Rarity is why readers land here mid-draft. 2 senses are on record.
Our edit-distance generator produced no likely misspellings for terrarium, since its letter pattern doesn't lend itself to common typo substitutions. This headword has no recorded confusable partner, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From Latin terra (“earth”) + -arium, by analogy with aquarium. The correct English form is terrarium, spelled T-E-R-R-A-R-I-U-M.
Definition
- 1An enclosure wherein small animals are displayed, usually with some plants, in a naturalistic setting.
- 2A partially enclosed glass container for displaying plants, especially plants that need high humidity.
Etymology
From Latin terra (“earth”) + -arium, by analogy with aquarium.
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); 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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "terrarium", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 9 letters (nearest by frequency rank).