dietary

/ˈdaɪət(ə)ɹi/

//ˈdaɪət(ə)ɹi// noun

"dietary" is a 7-letter English headword indexed on PlainSpell.

The verdict

“dietary” is a moderately-common English word, ranked #11,199 in English word frequency and used as a noun.

#11,199
frequency rank, English
7
letters
10
tracked misspellings
4
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A regulated diet that excludes or constrains certain types of food, especially for health reasons; also, a book or similar setting out such regulations.

Visual similarity to commonly confused words

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

dietary vs dreary
71% similar
dietary vs dieter
71% similar
dietary vs diary
71% similar

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

Key facts for dietary
PropertyValue
Headworddietary
LanguageEnglish
Part of speechNoun
IPA/ˈdaɪət(ə)ɹi/
Letters7
Frequency rank#11,199
Misspellings tracked10
Confusable pairs4
SourceWiktionary (kaikki.org)

Where “dietary” 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). dietary 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 dietary is 7 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈdaɪət(ə)ɹi/. Corpus data places it at rank #11,199 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 10 likely wrong-spelling variants for dietary, with forms such as "ddietary", "deitary", and "dieatry". 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 4 confusable-pair relationships, "dreary", "dieter", "diary", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Medieval Latin diētārium (“book prescribing diet”), from Latin diaeta (“diet”). The correct English form is dietary, spelled D-I-E-T-A-R-Y.

Definition

  1. 1
    A regulated diet that excludes or constrains certain types of food, especially for health reasons; also, a book or similar setting out such regulations.
  2. 2
    A prescribed meal plan setting out how the inhabitants of an institution (such as a prison, hospital etc.) should be fed, and on what foods.

Etymology

From Medieval Latin diētārium (“book prescribing diet”), from Latin diaeta (“diet”).

Common misspellings

Also misspelled as: ddietary,deitary,dieatry,dietarry,dietaryy,dietayr,dietray,diettary,diteary,idetary

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of dietary - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

ddietary1deitary2dieatry2dietarry1dietaryy1dietayr2dietray2diettary1
Edit distance from "dietary"

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 "dietary"?
"dietary" is spelled D-I-E-T-A-R-Y. The IPA pronunciation is /ˈdaɪət(ə)ɹi/.
What does "dietary" mean?
As a noun, "dietary" means: A regulated diet that excludes or constrains certain types of food, especially for health reasons; also, a book or similar setting out such regulations.
What words are commonly confused with "dietary"?
"dietary" is commonly confused with "dreary", "dieter", "diary". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "dietary"?
The IPA (International Phonetic Alphabet) transcription for "dietary" is /ˈdaɪət(ə)ɹi/. 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 "dietary"?
From Medieval Latin diētārium (“book prescribing diet”), from Latin diaeta (“diet”). 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 “dietary”

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

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