ipso facto

/ˌɪpsəʊ ˈfæktəʊ/

//ˌɪpsəʊ ˈfæktəʊ// adv

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

The verdict

“ipso facto” is uncommon English (outside the top frequency list), classed as an adverb. The kind of spelling people second-guess.

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - By that very fact itself; actually.

Corpus desk

Index EN-ipso-facto · ipso facto · English

ipso facto · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "I" 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 ipso facto
PropertyValue
Headwordipso facto
LanguageEnglish
Part of speechAdverb
IPA/ˌɪpsəʊ ˈfæktəʊ/
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “ipso facto” in English

ipso factosits 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

ipso facto is uncommon English outside the top frequency list, classed as anadverb, transcribed /ˌɪpsəʊ ˈfæktəʊ/. Rarity is why readers land here mid-draft. Gloss: "By that very fact itself; actually.".

ipso facto doesn't appear in our generated misspelling index, a sign its spelling follows regular English conventions. No confusable counterpart is on file for this word, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: Borrowed from Latin ipsō factō (“by the same fact”). The correct English form is ipso facto, spelled I-P-S-O- -F-A-C-T-O.

Definition

  1. 1
    By that very fact itself; actually.

Recorded use

Wiktionary examples

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

  1. Cope was not long in feeling him as operating on the unconscious assumption—unconscious, and therefore all the more damnable—that the young man in business constituted, ipso facto, a kind of norm by which other young men in other fields of endeavor were to be gauged: […]
  2. For [Ludwig von] Mises or [Murray] Rothbard, it is simply confused to posit latent preferences; if two individuals fail to make an exchange, then this ipso facto demonstrates that at that moment at least one of them would not have benefited from the exchange.

Etymology

Borrowed from Latin ipsō factō (“by the same fact”).

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 "ipso facto"?
"ipso facto" is spelled I-P-S-O- -F-A-C-T-O. The IPA pronunciation is /ˌɪpsəʊ ˈfæktəʊ/.
What does "ipso facto" mean?
As an adverb, "ipso facto" means: By that very fact itself; actually.
How do you pronounce "ipso facto"?
The IPA (International Phonetic Alphabet) transcription for "ipso facto" is /ˌɪpsəʊ ˈfæktəʊ/. 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 "ipso facto"?
Borrowed from Latin ipsō factō (“by the same fact”). 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