ad lib

adv

The verdict

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

Unranked
below top-frequency French
6
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Ad libitum, à discrétion, à volonté.

Corpus desk

Index FR-ad-lib · ad lib · French

ad lib · 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 "A" thin
  • PHOTO-UNK Peer pending

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 ad lib
PropertyValue
Headwordad lib
LanguageFrench
Part of speechAdverb
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « ad lib » en français

ad libsiège au-delà des 100.000 formes les plus fréquentes du français, dans la traîne du lexique spécialisé ou peu usité.

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

Rare enough to double-check

ad lib is uncommon French outside the top frequency list, classed as anadverb. Rarity is why readers land here mid-draft. Gloss: "Ad libitum, à discrétion, à volonté.".

The misspelling generator found no plausible variants for ad lib, suggesting the orthography follows predictable French patterns. It is not paired with a close-neighbour confusable in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.

This entry carries no recorded etymology, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct French form is ad lib, spelled A-D- -L-I-B.

Definition

  1. 1
    Ad libitum, à discrétion, à volonté.

Recorded use

Wiktionary example

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

  1. On a vu que le « format » des petits ensembles bebop repose sur une règle assez simple : énoncé une ou deux fois du thème (qui comporte les plus souvent un pont, genre AABA), improvisation ad lib sur la grille, puis dernier exposé.

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 "ad lib"?
"ad lib" is spelled A-D- -L-I-B.
What does "ad lib" mean?
As an adverb, "ad lib" means: Ad libitum, à discrétion, à volonté.
What language does "ad lib" come from?
"ad lib" is a French word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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