cardiac

/ˈkɑːdɪæk/

//ˈkɑːdɪæk// adj

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

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

The verdict

“cardiac” has 10 generated spelling variants in the English index at frequency #9,022. The variants make it a useful spelling check.

#9,022
frequency rank, English
5,599
“C” headwords
10
tracked misspellings
5
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Pertaining to the heart.

Corpus desk

Index EN-cardiac · cardiac · English

cardiac · rank #9,022 · 10 variants · 5 confusables

  • FREQ-COMMON #9,022
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-MID 5 pairs
  • VAR-MID 10 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH Cairo

Nearest frequency peer: Cairo (-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 “cardiac”

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

corpus weight

What this shows “cardiac” 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).

cardiac vs Cardiff
57% similar
cardiac vs cordial
71% similar
cardiac vs cardinal
75% similar

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

Key facts for cardiac
PropertyValue
Headwordcardiac
LanguageEnglish
Part of speechAdjective
IPA/ˈkɑːdɪæk/
Letters7
Frequency rank#9,022
Misspellings tracked10
Confusable pairs5
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “cardiac”

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).cardiaclands 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 “Cairo” (#9,021), “Bryant” (#9,020), “commanding” (#9,024). Among 5,599 “C” headwords, “cardiac” is #9,022. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 10 spelling variants around cardiac (IPA /ˈkɑːdɪæk/), anadjective. Corpus frequency is #9,022 among 5,599 “C” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 10 likely wrong-spelling variants for cardiac, with forms such as "acrdiac", "cadriac", and "cardaic". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 5 confusable-pair relationships, "Cardiff", "cordial", "cardinal", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle French cardiaque, from Latin cardiacus, from Ancient Greek καρδιακός (kardiakós, “relating to the heart”), from καρδία (kardía, “heart”); by surface analysis, cardi- + -ac. The correct English form is cardiac, spelled C-A-R-D-I-A-C.

Definition

  1. 1
    Pertaining to the heart.
  2. 2
    Pertaining to the cardia of the stomach; cardial (cardial is the usual adjective in this sense).
  3. 3
    Exciting action in the heart, through the medium of the stomach; cordial; stimulant.

Recorded use

Wiktionary example

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

  1. the cardiac arteries

Etymology

From Middle French cardiaque, from Latin cardiacus, from Ancient Greek καρδιακός (kardiakós, “relating to the heart”), from καρδία (kardía, “heart”); by surface analysis, cardi- + -ac.

Antonyms

noncardiac

This word in other languages

cardiaco(Español)cardiaque(Français)Herz-(Deutsch)

Common misspellings

Also misspelled as:

  • acrdiac
  • cadriac
  • cardaic
  • carddiac
  • cardiacc
  • cardica
  • caridac
  • carrdiac
  • ccardiac
  • cradiac

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of cardiac - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

acrdiac2cadriac2cardaic2carddiac1cardiacc1cardica2caridac2carrdiac1
Edit distance from "cardiac"

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 "cardiac"?
"cardiac" is spelled C-A-R-D-I-A-C. The IPA pronunciation is /ˈkɑːdɪæk/.
What does "cardiac" mean?
As an adjective, "cardiac" means: Pertaining to the heart.
What words are commonly confused with "cardiac"?
"cardiac" is commonly confused with "Cardiff", "cordial", "cardinal". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "cardiac"?
The IPA (International Phonetic Alphabet) transcription for "cardiac" is /ˈkɑːdɪæk/. 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 "cardiac"?
From Middle French cardiaque, from Latin cardiacus, from Ancient Greek καρδιακός (kardiakós, “relating to the heart”), from καρδία (kardía, “heart”); by surface analysis, cardi- + -ac. 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 "cardiac", not the corpus desk frequency band.

Same letter count

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

bracket#9,018bitches#9,017batting#9,015Bangkok#9,014

Similar misspelling depth

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

Bryant10 variantsanalyze10 variantsfutures10 variantssplash10 variants

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

Source: FrequencyWords open word-frequency list