astronomy
/əˈstɹɑ.nə.mi/noun
astronomy is spelled A-S-T-R-O-N-O-M-Y: 9 letters and 4 syllables. It appears 4.3 times per million words in written English, the 12,397th most frequent word form (wordfreq, 2021 data). As a noun, astronomy means “The study of the physical universe beyond the Earth's atmosphere, including the process of mapping locations and properties of the matter and…” (English Wiktionary, September 2026). The plural of astronomy is astronomies.
How many letters and syllables are in astronomy?
| Letters | 9: A-S-T-R-O-N-O-M-Y |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | 4.3 times per million words; the 12,397th most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is astronomy?
Astronomy appears 4.3 times per million words in written English, the 12,397th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce astronomy?
- UK /əˈstɹɒn.ə.mi/
- US /əˈstɹɑ.nə.mi/
- US /æsˈtɹɑ.nə.mi/
Astronomy has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-astronomy.ogg, Wikimedia Commons (author and licence on each file's page).
What rhymes with astronomy?
6 words on PlainSpell end in the same sounds as astronomy from its last stressed vowel (/ɑnəmi/):
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of astronomy
- astronomies plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does astronomy mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The study of the physical universe beyond the Earth's atmosphere, including the process of mapping locations and properties of the matter and radiation in the universe.
- 2
obsoleteAstrology.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you abbreviate astronomy?
Wiktionary records one abbreviation of astronomy: astr.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Astronomy in Spanish, French, German and Portuguese
In the sense study of the physical universe beyond the Earth's atmosphere:
| Language | Words |
|---|---|
| French | astronomie |
| German | Astronomie, Sternkunde, Himmelskunde |
| Portuguese | astronomia |
| Spanish | astronomía |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does astronomy come from?
From Middle English astronomie, astronemy, from Old French astronomie, equivalent to astro- + -nomy. Displaced native Old English tungolcræft.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).