Isaiah

/aɪˈzeɪ.ə/

//aɪˈzeɪ.ə// name

By · According to Wiktionary data (CC BY-SA) ·

"isaiah" is a 6-letter English headword indexed on PlainSpell.

The verdict

“Isaiah” has 7 generated spelling variants in the English index at frequency #12,999. The variants make it a useful spelling check.

#12,999
frequency rank, English
2,140
“I” headwords
7
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A book of the Old Testament of the Bible, and of the Tanakh.

Corpus desk

Index EN-isaiah · Isaiah · English

Isaiah · rank #12,999 · 7 variants · 1 confusable

  • FREQ-MID #12,999
  • LEN-LONG 6 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 1 pairs
  • VAR-MID 7 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH interestingly

Nearest frequency peer: interestingly (-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 “Isaiah”

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

corpus weight

What this shows “Isaiah” 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).

Isaiah vs Isaac
67% similar

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

Key facts for Isaiah
PropertyValue
HeadwordIsaiah
LanguageEnglish
Part of speechProper noun
IPA/aɪˈzeɪ.ə/
Letters6
Frequency rank#12,999
Misspellings tracked7
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “Isaiah”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).Isaiahlands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “interestingly” (#12,998), “isolate” (#13,000), “intercourse” (#12,997). Among 2,140 “I” headwords, “Isaiah” is #12,999. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 7 spelling variants around Isaiah (IPA /aɪˈzeɪ.ə/), aproper noun. Corpus frequency is #12,999 among 2,140 “I” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 7 likely wrong-spelling variants for Isaiah, with forms such as "iasiah", "isaaih", and "isaiahh". 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 1 confusable-pair relationship, "Isaac", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Ancient Greek Ἠσαΐας (Ēsaḯas) from Hebrew יְשַׁעְיָהוּ (yəšaʿyā́hū). The correct English form is Isaiah, spelled I-S-A-I-A-H.

Definition

  1. 1
    A book of the Old Testament of the Bible, and of the Tanakh.
  2. 2
    A prophet, the author of the Book of Isaiah.
  3. 3
    A male given name from Hebrew.

Recorded use

Wiktionary example

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

  1. The family tree boasts an astonishing array of celebrated historical figures from the prophet Isaiah to Sir Isaiah Berlin, from Felix Mendelssohn to Karl Marx and Moses Montefiore. The list also includes Yehudi Menuhin, Helena Rubinstein, the Rothschilds and even Rosenstein himself.

Etymology

From Ancient Greek Ἠσαΐας (Ēsaḯas) from Hebrew יְשַׁעְיָהוּ (yəšaʿyā́hū).

This word in other languages

Isaías(Español)Isaïe(Français)Jesaja(Deutsch)

Common misspellings

Also misspelled as:

  • iasiah
  • isaaih
  • isaiahh
  • isaiha
  • isiaah
  • issaiah
  • siaiah

Misspelling Pattern Breakdown

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

iasiah2isaaih2isaiahh1isaiha2isiaah2issaiah1siaiah2
Edit distance from "Isaiah"

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 "Isaiah"?
"Isaiah" is spelled I-S-A-I-A-H. The IPA pronunciation is /aɪˈzeɪ.ə/.
What does "Isaiah" mean?
As a proper noun, "Isaiah" means: A book of the Old Testament of the Bible, and of the Tanakh.
What words are commonly confused with "Isaiah"?
"Isaiah" is commonly confused with "Isaac". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "Isaiah"?
The IPA (International Phonetic Alphabet) transcription for "Isaiah" is /aɪˈzeɪ.ə/. 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 "Isaiah"?
From Ancient Greek Ἠσαΐας (Ēsaḯas) from Hebrew יְשַׁעְיָהוּ (yəšaʿyā́hū). 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 "Isaiah", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 6 letters (nearest by frequency rank).

knocks#13,005hotter#12,991Lawson#13,007hereby#12,989

Similar misspelling depth

Headwords with a similar count of attested misspellings (7 here; floor ≥5).

fetus7 variantsmound7 variantsFargo7 variantsfamed7 variants

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

Source: FrequencyWords open word-frequency list