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lambda

Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.

Letters

6 characters

Language

English

word origin

Source

Wiktionary

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Detailed reference entry for the English word "lambda", 6-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "lambda" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "lambda" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

lambda is aEnglishnoun. It means: The eleventh letter of the Classical and Modern Greek alphabet, the twelfth of the Old Greek alphabet. Pronounced /ˈlæm.də/. Often confused with lambs and Lambo.

Key facts for lambda
PropertyValue
Headwordlambda
LanguageEnglish
Part of speechNoun
IPA/ˈlæm.də/
Letters6
Frequency rank#26,857
Misspellings tracked9
Confusable pairs5
SourceWiktionary (kaikki.org)

Frequency rank visualization

Position of lambda in English word frequency (lower rank = more common)

Source: Wordfreq corpus

Spelling & Dictionary Insight

The English entry for lambda is 6 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /ˈlæm.də/. Corpus data places it at rank #26,857 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 Hunspell-derived misspelling index lists 9 documented wrong-spelling variants for lambda, with forms such as "almbda", "labmda", and "lambad". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It also participates in 5 confusable-pair relationships, "lambs", "Lambo", "lamb", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Ancient Greek λάμβδα (lámbda). Doublet of lamed. Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is lambda, spelled L-A-M-B-D-A, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    The eleventh letter of the Classical and Modern Greek alphabet, the twelfth of the Old Greek alphabet.
  2. 2
    Unit representation of wavelength.
  3. 3
    The cosmological constant.
  4. 4
    Ellipsis of lambda baryon.
  5. 5
    Ellipsis of lambda expression.
  6. 6
    Ellipsis of lambda function.
  7. 7
    The junction of the lambdoid and sagittal sutures of the cranium.
  8. 8
    The percentage change in an option value divided by the percentage change in the underlying asset's price.

Etymology

From Ancient Greek λάμβδα (lámbda). Doublet of lamed.

Synonyms

This word in other languages

Common misspellings

Also misspelled as: almbda,labmda,lambad,lambbda,lambdda,lamdba,lammbda,llambda,lmabda

Misspelling Pattern Breakdown

Relative frequency of common misspelling types for lambda

Misspelling Variants of "lambda"

almbda6labmda6lambad6lambbda7lambdda7lamdba6lammbda7llambda7
Misspelling Variants of "lambda"

Frequency rank: #26,857 in English

Frequently Asked Questions

How do you spell "lambda"?
"lambda" is spelled L-A-M-B-D-A. The IPA pronunciation is /ˈlæm.də/.
What does "lambda" mean?
As a noun, "lambda" means: The eleventh letter of the Classical and Modern Greek alphabet, the twelfth of the Old Greek alphabet.
What words are commonly confused with "lambda"?
"lambda" is commonly confused with "lambs", "Lambo", "lamb". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "lambda"?
The IPA (International Phonetic Alphabet) transcription for "lambda" is /ˈlæm.də/. 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 "lambda"?
From Ancient Greek λάμβδα (lámbda). Doublet of lamed. 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.

Nearby English words

Other entries that begin with the letter L in our English index:

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Data Source: Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Frequency data from Wordfreq. Misspellings derived from Hunspell dictionaries.