alpha

/ˈælfə/

//ˈælfə// noun

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

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

The verdict

“alpha” is a regularly-used English word, ranked #4,651 in English word frequency and used as a noun.

#4,651
frequency rank, English
5
letters
7
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The name of the first letter of the Greek alphabet (Α, α), followed by beta. In the Latin alphabet it is the predecessor to A.

Visual similarity to commonly confused words

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

alpha vs apa
60% similar
alpha vs Alps
40% similar
alpha vs alta
60% similar

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

Key facts for alpha
PropertyValue
Headwordalpha
LanguageEnglish
Part of speechNoun
IPA/ˈælfə/
Letters5
Frequency rank#4,651
Misspellings tracked7
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “alpha” 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). alpha 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 alpha is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈælfə/. Corpus data places it at rank #4,651 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 13 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 7 likely wrong-spelling variants for alpha, with forms such as "alhpa", "allpha", and "alpah". 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 20 confusable-pair relationships, "apa", "Alps", "alta", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Etymology tree Egyptian 𓃾der. Phoenician 𐤀 (ʾ /⁠ʾālep⁠/)bor. Ancient Greek ἄλφα (álpha)bor. English alpha From the Ancient Greek ἄλφα (álpha), the first letter of the Greek alphabet, from the Phoenician 𐤀 (ʾ, “aleph”). Doublet of alif and aleph. The correct English form is alpha, spelled A-L-P-H-A.

Definition

  1. 1
    The name of the first letter of the Greek alphabet (Α, α), followed by beta. In the Latin alphabet it is the predecessor to A.
  2. 2
    Latin alpha: the Latin letter Ɑ (minuscule: ɑ).
  3. 3
    The name of the symbols Α and α used in science and mathematics, often interchangeable with the symbols when used as a prefix.
  4. 4
    The return of a given asset or portfolio adjusted for systematic risk.
  5. 5
    A person, especially a male, who is dominant, successful and attractive; (see alpha male).
  6. 6
    Clipping of alphabet.
  7. 7
    The first versions of a program, usually only available to the developer, and only tested by the developer.
  8. 8
    An angle of attack.
  9. 9
    The level of translucency of a color, as determined by the alpha channel.
  10. 10
    Ellipsis of alpha layer.
  11. 11
    The significance level of a statistical test; the alpha level.
  12. 12
    In omegaverse fiction, a person of a dominant secondary sex driven by biology, magic, or other means to bond with an omega, with males of this type often having canine-like genitalia.
  13. 13
    Alternative letter-case form of Alpha (“member of Generation Alpha”).

Etymology

Etymology tree Egyptian 𓃾der. Phoenician 𐤀 (ʾ /⁠ʾālep⁠/)bor. Ancient Greek ἄλφα (álpha)bor. English alpha From the Ancient Greek ἄλφα (álpha), the first letter of the Greek alphabet, from the Phoenician 𐤀 (ʾ, “aleph”). Doublet of alif and aleph.

This word in other languages

alfa(Español)alpha(Français)Alpha(Deutsch)

Common misspellings

Also misspelled as: alhpa,allpha,alpah,alphha,alppha,aplha,lapha

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of alpha - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

alhpa2allpha1alpah2alphha1alppha1aplha2lapha2
Edit distance from "alpha"

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 "alpha"?
"alpha" is spelled A-L-P-H-A. The IPA pronunciation is /ˈælfə/.
What does "alpha" mean?
As a noun, "alpha" means: The name of the first letter of the Greek alphabet (Α, α), followed by beta. In the Latin alphabet it is the predecessor to A.
What words are commonly confused with "alpha"?
"alpha" is commonly confused with "apa", "Alps", "alta". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "alpha"?
The IPA (International Phonetic Alphabet) transcription for "alpha" is /ˈælfə/. 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 "alpha"?
Etymology tree Egyptian 𓃾der. Phoenician 𐤀 (ʾ /⁠ʾālep⁠/)bor. Ancient Greek ἄλφα (álpha)bor. English alpha From the Ancient Greek ἄλφα (álpha), the first letter of the Greek alphabet, from the Phoenician 𐤀 (ʾ, “aleph”). Doublet of alif and aleph. 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 “alpha”

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

  • The one correct English spelling is A-L-P-H-A - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈælfə/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “apa” - see the side-by-side comparison. alpha vs apa
  • 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