lambda

/ˈlæm.də/

//ˈlæm.də// noun

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

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

The verdict

“lambda” has 9 generated spelling variants in the English index at frequency #26,857. The variants make it a useful spelling check.

#26,857
frequency rank, English
2,297
“L” headwords
9
tracked misspellings
5
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The eleventh letter of the Classical and Modern Greek alphabet, the twelfth of the Old Greek alphabet.

Corpus desk

Index EN-lambda · lambda · English

lambda · rank #26,857 · 9 variants · 5 confusables

  • FREQ-MID #26,857
  • LEN-LONG 6 letters
  • VOW-2 2 vowels
  • CONFUS-MID 5 pairs
  • VAR-MID 9 variants
  • BOOK-MID 2,297
  • PHOTO-FINISH Khalil

Nearest frequency peer: Khalil (-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 “lambda”

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

corpus weight

What this shows “lambda” 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).

lambda vs lambs
67% similar
lambda vs Lambo
50% similar
lambda vs lamb
67% similar

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

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 seat of misspelling magnet “lambda”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).lambdalands here:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “Khalil” (#26,856), “kee” (#26,855), “leaky” (#26,859). Among 2,297 “L” headwords, “lambda” is #26,857. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 9 spelling variants around lambda (IPA /ˈlæm.də/), anoun. Corpus frequency is #26,857 among 2,297 “L” headwords. Wiktionary lists 8 senses, so context still picks the gloss.

Our generated misspelling index lists 9 likely wrong-spelling variants for lambda, with forms such as "almbda", "labmda", and "lambad". 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 5 confusable-pair relationships, "lambs", "Lambo", "lamb", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From Ancient Greek λάμβδα (lámbda). Doublet of lamed. The correct English form is lambda, spelled L-A-M-B-D-A.

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

elasticityomega

This word in other languages

lambda(Español)lambda(Français)Lambda(Deutsch)

Common misspellings

Also misspelled as:

  • almbda
  • labmda
  • lambad
  • lambbda
  • lambdda
  • lamdba
  • lammbda
  • llambda
  • lmabda

Misspelling Pattern Breakdown

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

almbda2labmda2lambad2lambbda1lambdda1lamdba2lammbda1llambda1
Edit distance from "lambda"

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 "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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "lambda", not the corpus desk frequency band.

Same letter count

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

Khalil#26,856Lehigh#26,860libido#26,863Ismail#26,846

Similar misspelling depth

Headwords with a similar count of attested misspellings (9 here; floor ≥5).

Harlow9 variantsflutter9 variantspundit9 variantsFillers9 variants

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

Source: FrequencyWords open word-frequency list