asterism

/ˈas.təˌɹɪz.əm/

//ˈas.təˌɹɪz.əm// noun

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

The verdict

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

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An unofficial constellation (small group of stars that forms a visible pattern).

Key facts for asterism
PropertyValue
Headwordasterism
LanguageEnglish
Part of speechNoun
IPA/ˈas.təˌɹɪz.əm/
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “asterism” sits in English frequency

asterism 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

asterism is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈas.təˌɹɪz.əm/. Rarity is why readers land here mid-draft. 3 senses are on record.

We couldn't generate a plausible misspelling set for asterism, a sign its spelling follows regular English conventions. We don't track a confusable pairing for this entry, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From Ancient Greek ἀστερισμός (asterismós, “group of stars”), from ἀστήρ (astḗr, “star”). Analyzable as aster- + -ism. The correct English form is asterism, spelled A-S-T-E-R-I-S-M.

Definition

  1. 1
    An unofficial constellation (small group of stars that forms a visible pattern).
  2. 2
    A rarely used typographical symbol of three asterisks arranged in a triangle, ⁂, used to call attention to a passage or to separate subchapters in a book. Distinct from a dinkus which also uses asterisks to separate.
  3. 3
    A star-shaped figure exhibited by some crystals by reflected light (as in a star sapphire) or by transmitted light (as in some mica).

Etymology

From Ancient Greek ἀστερισμός (asterismós, “group of stars”), from ἀστήρ (astḗr, “star”). Analyzable as aster- + -ism.

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 "asterism"?
"asterism" is spelled A-S-T-E-R-I-S-M. The IPA pronunciation is /ˈas.təˌɹɪz.əm/.
What does "asterism" mean?
As a noun, "asterism" means: An unofficial constellation (small group of stars that forms a visible pattern).
How do you pronounce "asterism"?
The IPA (International Phonetic Alphabet) transcription for "asterism" is /ˈas.təˌɹɪz.əm/. 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 "asterism"?
From Ancient Greek ἀστερισμός (asterismós, “group of stars”), from ἀστήρ (astḗr, “star”). Analyzable as aster- + -ism. 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 “asterism”

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

  • The one correct English spelling is A-S-T-E-R-I-S-M - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈas.təˌɹɪz.əm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • 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