efficaces

\e.fi.kas\

/\e.fi.kas\/ adj

The verdict

“efficaces” is a regularly-used French word, ranked #5,975 in French word frequency and used as an adjective.

#5,975
frequency rank, French
9
letters
11
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Pluriel de efficace.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

efficaces vs efficace
89% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for efficaces
PropertyValue
Headwordefficaces
LanguageFrench
Part of speechAdjective
IPA\e.fi.kas\
Letters9
Frequency rank#5,975
Misspellings tracked11
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “efficaces” sits in French frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). efficaces lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The French entry for efficaces is 9 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as \e.fi.kas\. Corpus data places it at rank #5,975 in overall French word frequency, indicating it appears regularly in written and spoken text. The dominant gloss from Wiktionary reads: "Pluriel de efficace.".

Our generated misspelling index lists 11 likely wrong-spelling variants for efficaces, with forms such as "effciaces", "effiacces", and "efficacces". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 1 confusable-pair relationship, "efficace", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

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 efficaces, spelled E-F-F-I-C-A-C-E-S.

Definition

  1. 1
    Pluriel de efficace.

Common misspellings

Also misspelled as: effciaces,effiacces,efficacces,efficacess,efficacse,efficaecs,efficcaces,efficcaes,eficaces,efifcaces,feficaces

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of efficaces - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

effciaces2effiacces2efficacces1efficacess1efficacse2efficaecs2efficcaces1efficcaes2
Edit distance from "efficaces"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 French corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "efficaces"?
"efficaces" is spelled E-F-F-I-C-A-C-E-S. The IPA pronunciation is \e.fi.kas\.
What does "efficaces" mean?
As an adjective, "efficaces" means: Pluriel de efficace.
What words are commonly confused with "efficaces"?
"efficaces" is commonly confused with "efficace". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "efficaces"?
The IPA (International Phonetic Alphabet) transcription for "efficaces" is \e.fi.kas\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "efficaces" come from?
"efficaces" is a French word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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.

Using “efficaces”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct French spelling is E-F-F-I-C-A-C-E-S - every other letter order is a misspelling in standard orthography.
  • Say it as \e.fi.kas\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “efficace” - see the side-by-side comparison. efficaces vs efficace
  • Browse more French words and confusable pairs in the same reference. French words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list