cofounder

/kəʊˈfaʊndə/

//kəʊˈfaʊndə// noun

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

"cofounder" is a 9-letter English headword indexed on PlainSpell.

The verdict

“cofounder” has 13 generated spelling variants in the English index at frequency #46,989. The variants make it a useful spelling check.

#46,989
frequency rank, English
5,599
“C” headwords
13
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A joint founder; one of several people involved with the creation of a business, organization, union, or entity.

Corpus desk

Index EN-cofounder · cofounder · English

cofounder · rank #46,989 · 13 variants · 1 confusable

  • FREQ-MID #46,989
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 1 pairs
  • VAR-HIGH 13 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH codename

Nearest frequency peer: codename (-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 “cofounder”

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

corpus weight

What this shows “cofounder” 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).

cofounder vs confounded
80% similar

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

Key facts for cofounder
PropertyValue
Headwordcofounder
LanguageEnglish
Part of speechNoun
IPA/kəʊˈfaʊndə/
Letters9
Frequency rank#46,989
Misspellings tracked13
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “cofounder”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).cofounderlands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “codename” (#46,988), “collectives” (#46,990), “CMV” (#46,987). Among 5,599 “C” headwords, “cofounder” is #46,989. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 13 spelling variants around cofounder (IPA /kəʊˈfaʊndə/), anoun. Corpus frequency is #46,989 among 5,599 “C” headwords. Dominant gloss: "A joint founder; one of several people involved with the creation of a business, organization, union, or entity.".

Our generated misspelling index lists 13 likely wrong-spelling variants for cofounder, with forms such as "ccofounder", "cfoounder", and "coffounder". 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 1 confusable-pair relationship, "confounded", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From co- + founder. The correct English form is cofounder, spelled C-O-F-O-U-N-D-E-R.

Definition

  1. 1
    A joint founder; one of several people involved with the creation of a business, organization, union, or entity.

Recorded use

Wiktionary examples

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

  1. The two cofounders both attended the ceremony.
  2. Miramax Films cofounders Bob and Harvey Weinstein will end their successful, but often tumultuous, 12-year relationship with The Walt Disney Company to launch their own media company.

Etymology

From co- + founder.

This word in other languages

cofundador(Español)cofondateur(Français)Mitgründer(Deutsch)

Common misspellings

Also misspelled as:

  • ccofounder
  • cfoounder
  • coffounder
  • cofonuder
  • cofoudner
  • cofoundder
  • cofounderr
  • cofoundre
  • cofounedr
  • cofounnder
  • cofuonder
  • coofunder
  • ocfounder

Misspelling Pattern Breakdown

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

ccofounder1cfoounder2coffounder1cofonuder2cofoudner2cofoundder1cofounderr1cofoundre2
Edit distance from "cofounder"

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 "cofounder"?
"cofounder" is spelled C-O-F-O-U-N-D-E-R. The IPA pronunciation is /kəʊˈfaʊndə/.
What does "cofounder" mean?
As a noun, "cofounder" means: A joint founder; one of several people involved with the creation of a business, organization, union, or entity.
What words are commonly confused with "cofounder"?
"cofounder" is commonly confused with "confounded". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "cofounder"?
The IPA (International Phonetic Alphabet) transcription for "cofounder" is /kəʊˈfaʊndə/. 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 "cofounder"?
From co- + founder. 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 "cofounder", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

clenching#46,985chrysalis#46,979bioethics#46,932binocular#46,931

Similar misspelling depth

Headwords with a similar count of attested misspellings (13 here; floor ≥5).

clumsily13 variantsCrompton13 variantscellophane13 variantsembittered13 variants

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

Source: FrequencyWords open word-frequency list