cathode

/ˈkæθ.oʊd/

//ˈkæθ.oʊd// noun

"cathode" is a 7-letter English headword indexed on PlainSpell.

The verdict

“cathode” has 10 generated spelling variants in the English index at frequency #27,767. The variants make it a useful spelling check.

#27,767
frequency rank, English
5,599
“C” headwords
10
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows outwards (and thus, electrons flow inwards). It can have either a negative or a...

Corpus desk

Index EN-cathode · cathode · English

cathode · rank #27,767 · 10 variants · 0 confusables

  • FREQ-MID #27,767
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-MID 10 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH categorically

Nearest frequency peer: categorically (-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 “cathode”

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

corpus weight

What this shows “cathode” 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
Key facts for cathode
PropertyValue
Headwordcathode
LanguageEnglish
Part of speechNoun
IPA/ˈkæθ.oʊd/
Letters7
Frequency rank#27,767
Misspellings tracked10
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “cathode”

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).cathodelands 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 “categorically” (#27,766), “ceded” (#27,768), “Caspian” (#27,765). Among 5,599 “C” headwords, “cathode” is #27,767. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 10 spelling variants around cathode (IPA /ˈkæθ.oʊd/), anoun. Corpus frequency is #27,767 among 5,599 “C” headwords. Wiktionary lists 4 senses, so context still picks the gloss.

Our generated misspelling index lists 10 likely wrong-spelling variants for cathode, with forms such as "acthode", "cahtode", and "cathdoe". 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. No confusable counterpart is on file for this word, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From Ancient Greek κατα- (kata-, “down”) and ὁδός (hodós, “journey, way”), equivalent to Ancient Greek κάθοδος (káthodos, “way down, descent”). Coined by English polymath William Whewell in 1834 for Michael Faraday, who introduced it later that year. By sur… The correct English form is cathode, spelled C-A-T-H-O-D-E.

Definition

  1. 1
    An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows outwards (and thus, electrons flow inwards). It can have either a negative or a positive voltage with respect to anode of the same polarized device (depending on whether the device is a load or a source, respectively).
  2. 2
    The electrode at which chemical reduction of cations takes place, usually resulting in the deposition of metal onto the electrode.
  3. 3
    The electrode from which electrons are emitted into a vacuum tube or gas-filled tube.
  4. 4
    That electrode of a semiconductor device which is connected to the n-type material of a p-n junction.

Etymology

From Ancient Greek κατα- (kata-, “down”) and ὁδός (hodós, “journey, way”), equivalent to Ancient Greek κάθοδος (káthodos, “way down, descent”). Coined by English polymath William Whewell in 1834 for Michael Faraday, who introduced it later that year. By surface analysis, cath- (alternative form of cata-) + -ode.

Antonyms

This word in other languages

Common misspellings

Also misspelled as:

  • acthode
  • cahtode
  • cathdoe
  • cathhode
  • cathodde
  • cathoed
  • catohde
  • catthode
  • ccathode
  • ctahode

Misspelling Pattern Breakdown

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

acthode2cahtode2cathdoe2cathhode1cathodde1cathoed2catohde2catthode1
Edit distance from "cathode"

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 "cathode"?
"cathode" is spelled C-A-T-H-O-D-E. The IPA pronunciation is /ˈkæθ.oʊd/.
What does "cathode" mean?
As a noun, "cathode" means: An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows outwards (and thus, electrons flow inwards). It can have either a negative or a...
What are common misspellings of "cathode"?
Common misspellings include "acthode", "cahtode", "cathdoe", "cathhode", "cathodde". The correct spelling is "cathode".
How do you pronounce "cathode"?
The IPA (International Phonetic Alphabet) transcription for "cathode" is /ˈkæθ.oʊd/. 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 "cathode"?
From Ancient Greek κατα- (kata-, “down”) and ὁδός (hodós, “journey, way”), equivalent to Ancient Greek κάθοδος (káthodos, “way down, descent”). Coined by English polymath William Whewell in 1834 for Michael Faraday, who introduced it later that ye... 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 "cathode", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (10 here; floor ≥5).

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

Source: FrequencyWords open word-frequency list