trichiliocosm

noun

"trichiliocosm" is a 13-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
13
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A concept in cosmology of a "third-order" universe containing one thousand second-order clusters, which are made of one thousand first-order clusters, which are in turn made of a thousand worlds ea...

Key facts for trichiliocosm
PropertyValue
Headwordtrichiliocosm
LanguageEnglish
Part of speechNoun
Letters13
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “trichiliocosm” sits in English frequency

trichiliocosm falls 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

trichiliocosm is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A concept in cosmology of a "third-order" universe containing one thousand second-order clusters, which are made of one thousand first-order clusters, which are in turn made of a thousand worlds ea...".

We couldn't generate a plausible misspelling set for trichiliocosm, typically a sign the spelling maps closely to how the word sounds. Our confusable-pair dataset has no match for it, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From tri- + chilia- + cosmos, partially calquing Sanskrit त्रिसहस्रमहासहस्रलोकधातु (trisahasramahāsahasralokadhātu, literally “three thousand million world element”). The correct English form is trichiliocosm, spelled T-R-I-C-H-I-L-I-O-C-O-S-M.

Definition

  1. 1
    A concept in cosmology of a "third-order" universe containing one thousand second-order clusters, which are made of one thousand first-order clusters, which are in turn made of a thousand worlds each. Billion-fold universe.

Etymology

From tri- + chilia- + cosmos, partially calquing Sanskrit त्रिसहस्रमहासहस्रलोकधातु (trisahasramahāsahasralokadhātu, literally “three thousand million world element”).

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 "trichiliocosm"?
"trichiliocosm" is spelled T-R-I-C-H-I-L-I-O-C-O-S-M.
What does "trichiliocosm" mean?
As a noun, "trichiliocosm" means: A concept in cosmology of a "third-order" universe containing one thousand second-order clusters, which are made of one thousand first-order clusters, which are in turn made of a thousand worlds ea...
What is the origin of the word "trichiliocosm"?
From tri- + chilia- + cosmos, partially calquing Sanskrit त्रिसहस्रमहासहस्रलोकधातु (trisahasramahāsahasralokadhātu, literally “three thousand million world element”). 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 “trichiliocosm”

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

  • The one correct English spelling is T-R-I-C-H-I-L-I-O-C-O-S-M - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words
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