ibidem

/ˈɪb.ɪ.dɛm/

//ˈɪb.ɪ.dɛm// adv

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

The verdict

“ibidem” is outside the top-ranked English vocabulary, used as an adverb - the kind of word writers most often double-check.

Unranked
below top-frequency English
6
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - In the same place; indicates a reference to the same source as the previous one.

Key facts for ibidem
PropertyValue
Headwordibidem
LanguageEnglish
Part of speechAdverb
IPA/ˈɪb.ɪ.dɛm/
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “ibidem” sits in English frequency

ibidem falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Spelling & Dictionary Insight

The English entry for ibidem is 6 letters long, classified as an adverb, and transcribed in the International Phonetic Alphabet as /ˈɪb.ɪ.dɛm/. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "In the same place; indicates a reference to the same source as the previous one.".

No generated misspelling entries exist for ibidem in our index, a straightforward case of a spelling with little room for common typos. Our confusable-pair dataset has no match for it, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: Borrowed from Latin ibīdem (“in the same place”). The correct English form is ibidem, spelled I-B-I-D-E-M.

Definition

  1. 1
    In the same place; indicates a reference to the same source as the previous one.

Etymology

Borrowed from Latin ibīdem (“in the same place”).

This word in other languages

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 "ibidem"?
"ibidem" is spelled I-B-I-D-E-M. The IPA pronunciation is /ˈɪb.ɪ.dɛm/.
What does "ibidem" mean?
As an adverb, "ibidem" means: In the same place; indicates a reference to the same source as the previous one.
How do you pronounce "ibidem"?
The IPA (International Phonetic Alphabet) transcription for "ibidem" is /ˈɪb.ɪ.dɛm/. 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 "ibidem"?
Borrowed from Latin ibīdem (“in the same place”). 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.

Using “ibidem”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is I-B-I-D-E-M - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈɪb.ɪ.dɛm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list