astrobiology
"astrobiology" is a 12-letter English headword indexed on PlainSpell.
The verdict
“astrobiology” is an uncommon English word, ranked #90,158 in English word frequency and used as a noun.
- #90,158
- frequency rank, English
- 12
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The study of life anywhere in the universe, including Earth.
| Property | Value |
|---|---|
| Headword | astrobiology |
| Language | English |
| Part of speech | Noun |
| Letters | 12 |
| Frequency rank | #90,158 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “astrobiology” sits in English frequency
Spelling & Dictionary Insight
The English entry for astrobiology is 12 letters long, classified as a noun. Corpus data places it at rank #90,158 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "The study of life anywhere in the universe, including Earth.".
No misspelling variants are generated for astrobiology in our index, since its letter sequence doesn't invite the usual edit-distance slips. This headword has no recorded confusable partner, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From astro- + biology. The correct English form is astrobiology, spelled A-S-T-R-O-B-I-O-L-O-G-Y.
Definition
- 1The study of life anywhere in the universe, including Earth.
Etymology
From astro- + biology.
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.
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Using “astrobiology”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is A-S-T-R-O-B-I-O-L-O-G-Y - 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.