ester
/ˈɛstɚ/
"ester" is a 5-letter English headword indexed on PlainSpell.
The verdict
“ester” has 6 generated spelling variants in the English index at frequency #26,780. The variants make it a useful spelling check.
- #26,780
- frequency rank, English
- 2,246
- “E” headwords
- 6
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A compound most often formed by the condensation of an alcohol and an acid, with elimination of water, which contains the functional group carbon-oxygen double bond (i.e., carbonyl) joined via carb...
Corpus desk
Index EN-ester · ester · English
ester · rank #26,780 · 6 variants · 20 confusables
- FREQ-MID #26,780
- LEN-MID 5 letters
- VOW-2 2 vowels
- CONFUS-HIGH 20 pairs
- VAR-MID 6 variants
- BOOK-MID 2,246
- PHOTO-FINISH excitedly
Nearest frequency peer: excitedly (+1 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 “ester”
Same rarity band: useful when a typo lands on a peer headword
- epithelial
epithelial
73,225 corpus weight
- Erickson
Erickson
73,223 corpus weight
- ester
ester
73,221 corpus weight
- excitedly
excitedly
73,220 corpus weight
- excruciating
excruciating
73,219 corpus weight
- farthest
farthest
73,217 corpus weight
What this shows “ester” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | ester |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈɛstɚ/ |
| Letters | 5 |
| Frequency rank | #26,780 |
| Misspellings tracked | 6 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Frequency seat of misspelling magnet “ester”
A misspelling magnet
The generator records 6 spelling variants around ester (IPA /ˈɛstɚ/), anoun. Corpus frequency is #26,780 among 2,246 “E” headwords. Dominant gloss: "A compound most often formed by the condensation of an alcohol and an acid, with elimination of water, which contains the functional group carbon-oxygen double bond (i.e., carbonyl) joined via carb...".
Our generated misspelling index lists 6 likely wrong-spelling variants for ester, with forms such as "esetr", "esster", and "esterr". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 20 confusable-pair relationships, "ever", "ether", "Estes", and more, where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: From German Ester, perhaps a contraction or abstraction of Essigäther (“ethyl acetate”), from Essig (“vinegar”) (from Latin acetum) and Äther (“ether”). See ether for more. The correct English form is ester, spelled E-S-T-E-R.
Definition
- 1A compound most often formed by the condensation of an alcohol and an acid, with elimination of water, which contains the functional group carbon-oxygen double bond (i.e., carbonyl) joined via carbon to another oxygen atom.
Recorded use
Wiktionary examplesThese source excerpts show how ester appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
To produce a test material containing at least 75 percent omega-3 polyunsaturates, the menhaden triglycerides are transesterified to produce fatty acid ethyl esters. The esters are reacted with urea dissolved in hot ethanol and the solution is cooled overnight.
The thiol-coenzyme-A ester formed by R-arylpropionic acid can bind to triglyceride to form a “hybrid” triglyceride: such hybrid triglycerides can cause alteration of fatty-acid metabolism and membrane function, and a lipophilic triglyceride–propionic-acid hybrid would be able to cross lipid membranes such as the blood–brain barrier.
Etymology
From German Ester, perhaps a contraction or abstraction of Essigäther (“ethyl acetate”), from Essig (“vinegar”) (from Latin acetum) and Äther (“ether”). See ether for more.
This word in other languages
Common misspellings
Also misspelled as:
- esetr
- esster
- esterr
- estre
- estter
- etser
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of ester - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "ester", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 5 letters (nearest by frequency rank).
Similar misspelling depth
Headwords with a similar count of attested misspellings (6 here; floor ≥5).