éphémérides

\e.fe.me.ʁid\

/\e.fe.me.ʁid\/ noun

The verdict

“éphémérides” is uncommon French (frequency #61,247 among 1,805 “É” headwords), classed as a noun. The kind of spelling people second-guess.

#61,247
frequency rank, French
1,805
“É” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Pluriel de éphéméride.

Corpus desk

Index FR-ephemerides · éphémérides · French

éphémérides · rank #61,247 · 0 variants · 0 confusables

  • FREQ-RARE #61,247
  • LEN-MEGA 11 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,805
  • PHOTO-FINISH épancher

Nearest frequency peer: épancher (-1 rank slots)

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.

Rangs de longue queue près de « éphémérides »

Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court

corpus weight

What this shows Vue de longue queue: où « éphémérides » se situe face à des rangs français aussi rares.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for éphémérides
PropertyValue
Headwordéphémérides
LanguageFrench
Part of speechNoun
IPA\e.fe.me.ʁid\
Letters11
Frequency rank#61,247
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « éphémérides » en français

Cette échelle va du noyau du français courant (gauche) jusqu'à la traîne des formes rares (droite).éphéméridestombe dans cette queue de rareté:

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

Les tics avancent en logarithme; chacun est de l'ordre de dix fois plus rare. Voisins rares de la même bande: « épancher » (#61,246), « éradiquée » (#61,248), « émois » (#61,245). Parmi 1,805 lemmes en « É », « éphémérides » est au #61,247. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

éphémérides is uncommon French at frequency #61,247 among 1,805 “É” headwords, classed as anoun, transcribed \e.fe.me.ʁid\. Rarity is why readers land here mid-draft. 2 senses are on record.

We couldn't generate a plausible misspelling set for éphémérides, a straightforward case of a spelling with little room for common typos. 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's etymology isn't recorded, so its spelling is best read as a straightforward mapping from sound to letter. The correct French form is éphémérides, spelled É-P-H-É-M-É-R-I-D-E-S.

Definition

  1. 1
    Pluriel de éphéméride.
  2. 2
    Tables astronomiques par lesquelles on détermine, pour chaque jour, le lieu de chaque planète dans le zodiaque ou les heures des marées.

Recorded use

Wiktionary example

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

  1. L’éclipse totale devait durer, d’après les calculs des éphémérides, quatre minutes trente-sept secondes, c’est-à-dire de onze heures quarante-trois minutes et quinze secondes à onze heures quarante-sept minutes et cinquante-sept secondes du matin.

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 "éphémérides"?
"éphémérides" is spelled É-P-H-É-M-É-R-I-D-E-S. The IPA pronunciation is \e.fe.me.ʁid\.
What does "éphémérides" mean?
As a noun, "éphémérides" means: Pluriel de éphéméride.
How do you pronounce "éphémérides"?
The IPA (International Phonetic Alphabet) transcription for "éphémérides" is \e.fe.me.ʁid\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "éphémérides" come from?
"éphémérides" 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.

Similar French words by spelling shape

Same letter count and similar misspelling depth for "éphémérides", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 11 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list