in extenso

adv

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

The verdict

“in extenso” 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) - At full length; unabbreviated.

Corpus desk

Index EN-in-extenso · in extenso · English

in extenso · 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 in extenso
PropertyValue
Headwordin extenso
LanguageEnglish
Part of speechAdverb
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “in extenso” in English

in extensosits 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

in extenso is uncommon English outside the top frequency list, classed as anadverb. Rarity is why readers land here mid-draft. Gloss: "At full length; unabbreviated.".

No misspelling variants are generated for in extenso in our index, which points to an orthography that plays by predictable English rules. No confusable counterpart is on file for this word, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: Borrowed from Latin in extenso. The correct English form is in extenso, spelled I-N- -E-X-T-E-N-S-O.

Definition

  1. 1
    At full length; unabbreviated.

Recorded use

Wiktionary examples

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

  1. I had to quote all these passages in extenso.
  2. Mr. Brett does not follow the examples set by White and Tudor and Smith of printing his leading cases in extenso.

Etymology

Borrowed from Latin in extenso.

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 "in extenso"?
"in extenso" is spelled I-N- -E-X-T-E-N-S-O.
What does "in extenso" mean?
As an adverb, "in extenso" means: At full length; unabbreviated.
What is the origin of the word "in extenso"?
Borrowed from Latin in extenso. 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