eighth

/eɪtθ/

//eɪtθ// adj

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

The verdict

“eighth” is a regularly-used English word, ranked #5,125 in English word frequency and used as an adjective.

#5,125
frequency rank, English
6
letters
8
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The ordinal form of the number eight.

Visual similarity to commonly confused words

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

eighth vs eighty
83% similar
eighth vs eight
83% similar

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

Key facts for eighth
PropertyValue
Headwordeighth
LanguageEnglish
Part of speechAdjective
IPA/eɪtθ/
Letters6
Frequency rank#5,125
Misspellings tracked8
Confusable pairs2
SourceWiktionary (kaikki.org)

Where “eighth” 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). eighth 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 eighth is 6 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /eɪtθ/. Corpus data places it at rank #5,125 in overall English word frequency, indicating it appears regularly in written and spoken text. The dominant gloss from Wiktionary reads: "The ordinal form of the number eight.".

Our generated misspelling index lists 8 likely wrong-spelling variants for eighth, with forms such as "egihth", "eigghth", and "eighhth". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 2 confusable-pair relationships, "eighty", "eight", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Inherited from Middle English eightethe, from Old English eahtoþa, from Proto-Germanic *ahtudô; equivalent to eight + -th (ordinal suffix). The correct English form is eighth, spelled E-I-G-H-T-H.

Definition

  1. 1
    The ordinal form of the number eight.

Etymology

Inherited from Middle English eightethe, from Old English eahtoþa, from Proto-Germanic *ahtudô; equivalent to eight + -th (ordinal suffix).

Synonyms

8thVIIIthVIII

This word in other languages

Common misspellings

Also misspelled as: egihth,eigghth,eighhth,eighthh,eightth,eigthh,eihgth,ieghth

Misspelling Pattern Breakdown

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

egihth2eigghth1eighhth1eighthh1eightth1eigthh2eihgth2ieghth2
Edit distance from "eighth"

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 "eighth"?
"eighth" is spelled E-I-G-H-T-H. The IPA pronunciation is /eɪtθ/.
What does "eighth" mean?
As an adjective, "eighth" means: The ordinal form of the number eight.
What words are commonly confused with "eighth"?
"eighth" is commonly confused with "eighty", "eight". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "eighth"?
The IPA (International Phonetic Alphabet) transcription for "eighth" is /eɪtθ/. 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 "eighth"?
Inherited from Middle English eightethe, from Old English eahtoþa, from Proto-Germanic *ahtudô; equivalent to eight + -th (ordinal suffix). 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 “eighth”

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

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