add-on

\a.dɔn\

/\a.dɔn\/ noun

The verdict

“add-on” is uncommon French (outside the top frequency list), classed as a noun. 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) - Extension (programme).

Corpus desk

Index FR-add-on · add-on · French

add-on · 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 add-on
PropertyValue
Headwordadd-on
LanguageFrench
Part of speechNoun
IPA\a.dɔn\
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « add-on » en français

add-onreste hors des 100.000 mots français les plus fréquents, dans la longue queue du vocabulaire technique, archaïque ou rare, là où le doute d'orthographe frappe.

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

Rare enough to double-check

add-on is uncommon French outside the top frequency list, classed as anoun, transcribed \a.dɔn\. Rarity is why readers land here mid-draft. Gloss: "Extension (programme).".

Zero misspellings are on record for add-on in our index, suggesting the orthography follows predictable French patterns. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.

Wiktionary doesn't record an etymology for this headword, 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 add-on, spelled A-D-D---O-N.

Definition

  1. 1
    Extension (programme).

Recorded use

Wiktionary example

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

  1. La prochaine version du navigateur devrait considérablement améliorer la gestion de la mémoire, principalement au niveau des pertes engendrées par les add-ons.

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 "add-on"?
"add-on" is spelled A-D-D---O-N. The IPA pronunciation is \a.dɔn\.
What does "add-on" mean?
As a noun, "add-on" means: Extension (programme).
How do you pronounce "add-on"?
The IPA (International Phonetic Alphabet) transcription for "add-on" is \a.dɔn\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "add-on" come from?
"add-on" 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