diode

/ˈdaɪ.əʊd/

//ˈdaɪ.əʊd// noun

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

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

The verdict

“diode” has 6 generated spelling variants in the English index at frequency #26,755. The variants make it a useful spelling check.

#26,755
frequency rank, English
3,470
“D” headwords
6
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An electronic device that allows current to flow in one direction only; used chiefly as a rectifier.

Corpus desk

Index EN-diode · diode · English

diode · rank #26,755 · 6 variants · 20 confusables

  • FREQ-MID #26,755
  • LEN-MID 5 letters
  • VOW-3 3 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 6 variants
  • BOOK-MID 3,470
  • PHOTO-FINISH dialing

Nearest frequency peer: dialing (-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 “diode”

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

corpus weight

What this shows “diode” 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).

diode vs doe
60% similar
diode vs DOD
0% similar
diode vs done
60% similar

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

Key facts for diode
PropertyValue
Headworddiode
LanguageEnglish
Part of speechNoun
IPA/ˈdaɪ.əʊd/
Letters5
Frequency rank#26,755
Misspellings tracked6
Confusable pairs20
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “diode”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).diodelands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “dialing” (#26,754), “dey” (#26,753), “devolution” (#26,752). Among 3,470 “D” headwords, “diode” is #26,755. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 6 spelling variants around diode (IPA /ˈdaɪ.əʊd/), anoun. Corpus frequency is #26,755 among 3,470 “D” headwords. Dominant gloss: "An electronic device that allows current to flow in one direction only; used chiefly as a rectifier.".

Our generated misspelling index lists 6 likely wrong-spelling variants for diode, with forms such as "ddiode", "didoe", and "diodde". 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 20 confusable-pair relationships, "doe", "DOD", "done", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From di- (“two”) + -ode. Learned formation, coined by William Henry Eccles in 1919, after Ancient Greek δίοδος (díodos, “passage through”), which however is formed not with δι- (di-, “two”) but with δια- (dia-, “through”). The correct English form is diode, spelled D-I-O-D-E.

Definition

  1. 1
    An electronic device that allows current to flow in one direction only; used chiefly as a rectifier.

Recorded use

Wiktionary examples

These source excerpts show how diode appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. I propose to give the name diode to a tube with two electrodes.
  2. If a crystal or a diode is used, the amplifier-voltmeter combination may be used with an amplitude-modulated source; or with a c-w source, the detector may be connected to a microammeter or galvanometer as an indicating device.

Etymology

From di- (“two”) + -ode. Learned formation, coined by William Henry Eccles in 1919, after Ancient Greek δίοδος (díodos, “passage through”), which however is formed not with δι- (di-, “two”) but with δια- (dia-, “through”).

This word in other languages

diodo(Español)diode(Français)Diode(Deutsch)

Common misspellings

Also misspelled as:

  • ddiode
  • didoe
  • diodde
  • dioed
  • doide
  • idode

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of diode - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

ddiode1didoe2diodde1dioed2doide2idode2
Edit distance from "diode"

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 "diode"?
"diode" is spelled D-I-O-D-E. The IPA pronunciation is /ˈdaɪ.əʊd/.
What does "diode" mean?
As a noun, "diode" means: An electronic device that allows current to flow in one direction only; used chiefly as a rectifier.
What words are commonly confused with "diode"?
"diode" is commonly confused with "doe", "DOD", "done". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "diode"?
The IPA (International Phonetic Alphabet) transcription for "diode" is /ˈdaɪ.əʊd/. 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 "diode"?
From di- (“two”) + -ode. Learned formation, coined by William Henry Eccles in 1919, after Ancient Greek δίοδος (díodos, “passage through”), which however is formed not with δι- (di-, “two”) but with δια- (dia-, “through”). 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 "diode", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

deans#26,744Duval#26,769Dwyer#26,770Coney#26,730

Similar misspelling depth

Headwords with a similar count of attested misspellings (6 here; floor ≥5).

corral6 variantsester6 variantsgills6 variantsbrim6 variants

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

Source: FrequencyWords open word-frequency list