com-

/ˌkəm/

//ˌkəm// prefix

"com" is a 3-letter English headword indexed on PlainSpell.

The verdict

“com-” is uncommon English (outside the top frequency list), classed as a prefix. The kind of spelling people second-guess.

Unranked
below top-frequency English
4
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The form of con- used before b, m, and p

Corpus desk

Index EN-com · com- · English

com- · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MID 4 letters
  • VOW-1 1 vowel
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "C" thin
  • PHOTO-UNK Peer pending

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.

Key facts for com-
PropertyValue
Headwordcom-
LanguageEnglish
Part of speechPrefix
IPA/ˌkəm/
Letters4
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “com-” in English

com-sits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

com- is uncommon English outside the top frequency list, classed as aprefix, transcribed /ˌkəm/. Rarity is why readers land here mid-draft. Gloss: "The form of con- used before b, m, and p".

Our edit-distance generator produced no likely misspellings for com-, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From Latin com (“with”), an archaic form of cum (“with”). The correct English form is com-, spelled C-O-M--.

Definition

  1. 1
    The form of con- used before b, m, and p

Etymology

From Latin com (“with”), an archaic form of cum (“with”).

Synonyms

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "com-"?
"com-" is spelled C-O-M--. The IPA pronunciation is /ˌkəm/.
What does "com-" mean?
As a prefix, "com-" means: The form of con- used before b, m, and p
How do you pronounce "com-"?
The IPA (International Phonetic Alphabet) transcription for "com-" is /ˌkəm/. 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 "com-"?
From Latin com (“with”), an archaic form of cum (“with”). 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.

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

Source: FrequencyWords open word-frequency list