collum

/ˈkɒl.əm/

//ˈkɒl.əm// noun

"collum" is a 6-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
6
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A neck, cervix, or neckline part or process.

Corpus desk

Index EN-collum · collum · English

collum · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 6 letters
  • VOW-2 2 vowels
  • 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 collum
PropertyValue
Headwordcollum
LanguageEnglish
Part of speechNoun
IPA/ˈkɒl.əm/
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “collum” in English

collumranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

collum is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈkɒl.əm/. Rarity is why readers land here mid-draft. 2 senses are on record.

collum doesn't appear in our generated misspelling index, suggesting the orthography follows predictable English patterns. Our confusable-pair dataset has no match for it, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: Borrowed from Latin collum (“the neck”). Doublet of col. The correct English form is collum, spelled C-O-L-L-U-M.

Definition

  1. 1
    A neck, cervix, or neckline part or process.
  2. 2
    A collar

Recorded use

Wiktionary example

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

  1. No sooner does a little particle of food touch the edge of the delicate collar which surrounds the collum, than it adheres to it and is carried down by currents, that circulate up one side of the collar and down the other, to the end of the collum, in which, along with an accompanying drop of water, it becomes at once engulped^([sic]).

Etymology

Borrowed from Latin collum (“the neck”). Doublet of col.

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 "collum"?
"collum" is spelled C-O-L-L-U-M. The IPA pronunciation is /ˈkɒl.əm/.
What does "collum" mean?
As a noun, "collum" means: A neck, cervix, or neckline part or process.
How do you pronounce "collum"?
The IPA (International Phonetic Alphabet) transcription for "collum" is /ˈkɒl.əm/. 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 "collum"?
Borrowed from Latin collum (“the neck”). Doublet of col. 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