ester
/ˈɛstɚ/noun
ester is spelled E-S-T-E-R: 5 letters and 2 syllables. It appears 1.1 times per million words in written English, the 26,776th most frequent word form (wordfreq, 2021 data, counting Ester, the name). As a noun, ester means “A compound most often formed by the condensation of an alcohol and an acid, with elimination of water, which contains the functional group…” (English Wiktionary, September 2026). The plural of ester is esters.
How many letters and syllables are in ester?
| Letters | 5: E-S-T-E-R |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | 1.1 times per million words; the 26,776th most frequent word form |
| Wrong spellings searched | none measured in search |
| Sounds like | |
| Rhymes with | |
| Same letters |
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 ester?
Ester appears 1.1 times per million words in written English, the 26,776th most frequent word form in the list. The list counts every capitalisation together, so this includes Ester, the name.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce ester?
- US /ˈɛstɚ/
- UK /ˈɛstə/
Ester has 2 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: LL-Q1860_(eng)-Vealhurl-ester.wav, Wikimedia Commons (author and licence on each file's page).
Words people confuse with ester
Sounds like: Esther (Wiktionary's homophone list; some hold only in some accents).
Sources: English Wiktionary (homophones, alternative spellings).
What rhymes with ester?
The 12 most written words on PlainSpell end in the same sounds as ester from its last stressed vowel (/ɛstəɹ/):
Spelled with the same letters in another order: reset, steer, terse, teres, stere, estre.
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 ester
- esters plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does ester mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
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 carbon to another oxygen atom.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Ester in Spanish, French, German and Portuguese
In the sense compound with carbon-oxygen double bond joined via carbon to another oxygen atom:
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.