décibel

\de.si.bɛl\

/\de.si.bɛl\/ noun

The verdict

“décibel” is uncommon French (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency French
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Unité de mesure de grandeurs logarithmiques du Système international (SI), valant 10⁻¹ bel, et dont le symbole est dB.

Corpus desk

Index FR-decibel · décibel · French

décibel · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "D" 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 décibel
PropertyValue
Headworddécibel
LanguageFrench
Part of speechNoun
IPA\de.si.bɛl\
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « décibel » en français

décibelreste 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

décibel is uncommon French outside the top frequency list, classed as anoun, transcribed \de.si.bɛl\. Rarity is why readers land here mid-draft. 2 senses are on record.

décibel has no tracked misspelling variants, suggesting the orthography follows predictable French patterns. No confusable counterpart is on file for this word, since no other headword is close enough in sound or shape to pair with it.

This headword's origin isn't recorded in our source data, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct French form is décibel, spelled D-É-C-I-B-E-L.

Definition

  1. 1
    Unité de mesure de grandeurs logarithmiques du Système international (SI), valant 10⁻¹ bel, et dont le symbole est dB.
  2. 2
    Unité de mesure de grandeurs logarithmiques du Système international (SI), valant 10⁻¹ bel, et dont le symbole est dB.

Recorded use

Wiktionary examples

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

  1. Le décibel exprime les rapports entre grandeurs de même espèce : 10 décibels signifient un rapport dont le logarithme décimal est l’unité (10¹ dB → 10:1) ; un décibel signifie un rapport dont le logarithme décimal vaut 10⁻¹ (1 dB → 10^(0,1):1 ≈ 1,259:1).
  2. Soyez attentifs aux décibels (dB) indiqués sur votre appareil. À titre indicatif, une climatisation dite « silencieuse » affiche un volume sonore moyen entre 20 et 30 dB.

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 "décibel"?
"décibel" is spelled D-É-C-I-B-E-L. The IPA pronunciation is \de.si.bɛl\.
What does "décibel" mean?
As a noun, "décibel" means: Unité de mesure de grandeurs logarithmiques du Système international (SI), valant 10⁻¹ bel, et dont le symbole est dB.
How do you pronounce "décibel"?
The IPA (International Phonetic Alphabet) transcription for "décibel" is \de.si.bɛl\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "décibel" come from?
"décibel" 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