yeast

/jiːst/

//jiːst// noun

"yeast" is a 5-letter English headword indexed on PlainSpell.

The verdict

“yeast” is a moderately-common English word, ranked #11,824 in English word frequency and used as a noun.

#11,824
frequency rank, English
5
letters
6
tracked misspellings
10
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An often humid, yellowish froth produced by fermenting malt worts, and used to brew beer, leaven bread, and also used in certain medicines.

Visual similarity to commonly confused words

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

yeast vs yet
60% similar
yeast vs yes
60% similar
yeast vs Yeats
40% similar

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

Key facts for yeast
PropertyValue
Headwordyeast
LanguageEnglish
Part of speechNoun
IPA/jiːst/
Letters5
Frequency rank#11,824
Misspellings tracked6
Confusable pairs10
SourceWiktionary (kaikki.org)

Where “yeast” sits in English frequency

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

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for yeast is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /jiːst/. Corpus data places it at rank #11,824 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 8 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 6 likely wrong-spelling variants for yeast, with forms such as "eyast", "yaest", and "yeasst". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 10 confusable-pair relationships, "yet", "yes", "Yeats", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English yest, yeest, gest, gist, from Old English ġist, ġyst, from Proto-West Germanic *jestu, from Proto-Germanic *jestuz. Cognate with Saterland Frisian Jääst (“yeast”), West Frisian gêst, gist (“yeast”), Dutch gist (“yeast”), German Low Germa… The correct English form is yeast, spelled Y-E-A-S-T.

Definition

  1. 1
    An often humid, yellowish froth produced by fermenting malt worts, and used to brew beer, leaven bread, and also used in certain medicines.
  2. 2
    A single-celled fungus of a wide variety of taxonomic families.
  3. 3
    A single-celled fungus of a wide variety of taxonomic families.
  4. 4
    A single-celled fungus of a wide variety of taxonomic families.
  5. 5
    A single-celled fungus of a wide variety of taxonomic families.
  6. 6
    A single-celled fungus of a wide variety of taxonomic families.
  7. 7
    A single-celled fungus of a wide variety of taxonomic families.
  8. 8
    A frothy foam.

Etymology

From Middle English yest, yeest, gest, gist, from Old English ġist, ġyst, from Proto-West Germanic *jestu, from Proto-Germanic *jestuz. Cognate with Saterland Frisian Jääst (“yeast”), West Frisian gêst, gist (“yeast”), Dutch gist (“yeast”), German Low German Gest (“yeast”), German Gischt (“sea foam”), Swedish jäst (“yeast”), Norwegian jest (“yeast”), Icelandic jöstur (“yeast”).

This word in other languages

Common misspellings

Also misspelled as: eyast,yaest,yeasst,yeastt,yesat,yyeast

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of yeast - 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.

eyast2yaest2yeasst1yeastt1yesat2yyeast1
Edit distance from "yeast"

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 "yeast"?
"yeast" is spelled Y-E-A-S-T. The IPA pronunciation is /jiːst/.
What does "yeast" mean?
As a noun, "yeast" means: An often humid, yellowish froth produced by fermenting malt worts, and used to brew beer, leaven bread, and also used in certain medicines.
What words are commonly confused with "yeast"?
"yeast" is commonly confused with "yet", "yes", "Yeats". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "yeast"?
The IPA (International Phonetic Alphabet) transcription for "yeast" is /jiːst/. 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 "yeast"?
From Middle English yest, yeest, gest, gist, from Old English ġist, ġyst, from Proto-West Germanic *jestu, from Proto-Germanic *jestuz. Cognate with Saterland Frisian Jääst (“yeast”), West Frisian gêst, gist (“yeast”), Dutch gist (“yeast”), German... 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.

Using “yeast”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is Y-E-A-S-T - every other letter order is a misspelling in standard orthography.
  • Say it as /jiːst/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “yet” - see the side-by-side comparison. yeast vs yet
  • 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.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list