diffraction

/dɪˈfɹækʃən/

//dɪˈfɹækʃən// noun

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

"diffraction" is a 11-letter English headword indexed on PlainSpell.

The verdict

“diffraction” is a moderately-common English word, ranked #27,123 in English word frequency and used as a noun.

#27,123
frequency rank, English
11
letters
16
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The bending of a wave around an obstacle.

Visual similarity to commonly confused words

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

diffraction vs distraction
82% similar

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

Key facts for diffraction
PropertyValue
Headworddiffraction
LanguageEnglish
Part of speechNoun
IPA/dɪˈfɹækʃən/
Letters11
Frequency rank#27,123
Misspellings tracked16
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “diffraction” 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). diffraction 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 diffraction is 11 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /dɪˈfɹækʃən/. Corpus data places it at rank #27,123 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 16 likely wrong-spelling variants for diffraction, with forms such as "ddiffraction", "dfifraction", and "diffarction". 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 1 confusable-pair relationship, "distraction", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From New Latin diffrāctiō (in which coined by Francesco Maria Grimaldi), from Latin diffrāctus, past participle of Latin diffringo (“to shatter, to break into pieces”). Coined in Physico-mathesis de lumine (1665) by Francesco Maria Grimaldi. The correct English form is diffraction, spelled D-I-F-F-R-A-C-T-I-O-N.

Definition

  1. 1
    The bending of a wave around an obstacle.
  2. 2
    The breaking up of an electromagnetic wave as it passes a geometric structure (e.g. a slit), followed by reconstruction of the wave by interference.

Etymology

From New Latin diffrāctiō (in which coined by Francesco Maria Grimaldi), from Latin diffrāctus, past participle of Latin diffringo (“to shatter, to break into pieces”). Coined in Physico-mathesis de lumine (1665) by Francesco Maria Grimaldi.

This word in other languages

difracción(Español)diffraction(Français)Beugung(Deutsch)

Common misspellings

Also misspelled as: ddiffraction,dfifraction,diffarction,diffracction,diffraciton,diffracsion,diffractino,diffractionn,diffractoin,diffracttion,diffratcion,diffrcation,diffrraction,difraction,difrfaction,idffraction

Misspelling Pattern Breakdown

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

ddiffraction1dfifraction2diffarction2diffracction1diffraciton2diffracsion1diffractino2diffractionn1
Edit distance from "diffraction"

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 "diffraction"?
"diffraction" is spelled D-I-F-F-R-A-C-T-I-O-N. The IPA pronunciation is /dɪˈfɹækʃən/.
What does "diffraction" mean?
As a noun, "diffraction" means: The bending of a wave around an obstacle.
What words are commonly confused with "diffraction"?
"diffraction" is commonly confused with "distraction". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "diffraction"?
The IPA (International Phonetic Alphabet) transcription for "diffraction" is /dɪˈfɹækʃən/. 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 "diffraction"?
From New Latin diffrāctiō (in which coined by Francesco Maria Grimaldi), from Latin diffrāctus, past participle of Latin diffringo (“to shatter, to break into pieces”). Coined in Physico-mathesis de lumine (1665) by Francesco Maria Grimaldi. 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 “diffraction”

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

  • The one correct English spelling is D-I-F-F-R-A-C-T-I-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as /dɪˈfɹækʃən/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “distraction” - see the side-by-side comparison. diffraction vs distraction
  • 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