astronomer

/əˈstɹɒn.ə.mə/

//əˈstɹɒn.ə.mə// noun

"astronomer" is a 10-letter English headword indexed on PlainSpell.

The verdict

“astronomer” has 15 generated spelling variants in the English index at frequency #23,460. The variants make it a useful spelling check.

#23,460
frequency rank, English
3,931
“A” headwords
15
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - One who studies astronomy, the stars or the physical universe; a scientist whose area of research is astronomy or astrophysics.

Corpus desk

Index EN-astronomer · astronomer · English

astronomer · rank #23,460 · 15 variants · 2 confusables

  • FREQ-MID #23,460
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 2 pairs
  • VAR-HIGH 15 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH attested

Nearest frequency peer: attested (+2 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.

Rank peers near misspelling magnet “astronomer”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “astronomer” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

astronomer vs astronomy
80% similar
astronomer vs astrologer
80% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for astronomer
PropertyValue
Headwordastronomer
LanguageEnglish
Part of speechNoun
IPA/əˈstɹɒn.ə.mə/
Letters10
Frequency rank#23,460
Misspellings tracked15
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “astronomer”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).astronomerlands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “attested” (#23,462), “anthropologist” (#23,457), “attrition” (#23,463). Among 3,931 “A” headwords, “astronomer” is #23,460. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 15 spelling variants around astronomer (IPA /əˈstɹɒn.ə.mə/), anoun. Corpus frequency is #23,460 among 3,931 “A” headwords. Dominant gloss: "One who studies astronomy, the stars or the physical universe; a scientist whose area of research is astronomy or astrophysics.".

Our generated misspelling index lists 15 likely wrong-spelling variants for astronomer, with forms such as "asrtonomer", "asstronomer", and "astornomer". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 2 confusable-pair relationships, "astronomy", "astrologer", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle English astronomer, equivalent to astronomy + -er. The correct English form is astronomer, spelled A-S-T-R-O-N-O-M-E-R.

Definition

  1. 1
    One who studies astronomy, the stars or the physical universe; a scientist whose area of research is astronomy or astrophysics.

Recorded use

Wiktionary examples

These source excerpts show how astronomer appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Pioneering American astronomer Vera Rubin once mentored fellow aspiring female astronomers and advocated for women in science. It’s fitting that the first national US observatory named for a female astronomer is in her honor.
  2. But none of those brown dwarfs were speeding along on a trajectory that would carry them out of the galaxy like “runaway” hypervelocity stars observed by astronomers in the last two decades.

Etymology

From Middle English astronomer, equivalent to astronomy + -er.

Synonyms

This word in other languages

Common misspellings

Also misspelled as:

  • asrtonomer
  • asstronomer
  • astornomer
  • astrnoomer
  • astronmoer
  • astronnomer
  • astronoemr
  • astronomerr
  • astronommer
  • astronomre
  • astroonmer
  • astrronomer
  • asttronomer
  • atsronomer
  • satronomer

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of astronomer - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

asrtonomer2asstronomer1astornomer2astrnoomer2astronmoer2astronnomer1astronoemr2astronomerr1
Edit distance from "astronomer"

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

How do you spell "astronomer"?
"astronomer" is spelled A-S-T-R-O-N-O-M-E-R. The IPA pronunciation is /əˈstɹɒn.ə.mə/.
What does "astronomer" mean?
As a noun, "astronomer" means: One who studies astronomy, the stars or the physical universe; a scientist whose area of research is astronomy or astrophysics.
What words are commonly confused with "astronomer"?
"astronomer" is commonly confused with "astronomy", "astrologer". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "astronomer"?
The IPA (International Phonetic Alphabet) transcription for "astronomer" is /əˈstɹɒn.ə.mə/. 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 "astronomer"?
From Middle English astronomer, equivalent to astronomy + -er. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "astronomer", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (15 here; floor ≥5).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list