one of these days

\ˌwʌn ɒv ˈðiːz ˌdeɪz\

/\ˌwʌn ɒv ˈðiːz ˌdeɪz\/ adv

By · According to Wiktionary data (CC BY-SA) ·

The verdict

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

Unranked
below top-frequency French
17
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - À l’occasion, un de ces quatre, un de ces jours.

Key facts for one of these days
PropertyValue
Headwordone of these days
LanguageFrench
Part of speechAdverb
IPA\ˌwʌn ɒv ˈðiːz ˌdeɪz\
Letters17
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “one of these days” sits in French frequency

one of these days falls outside the top-100,000 ranked French words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

one of these days is uncommon French outside the top frequency list, classed as anadverb, transcribed \ˌwʌn ɒv ˈðiːz ˌdeɪz\. Rarity is why readers land here mid-draft. Gloss: "À l’occasion, un de ces quatre, un de ces jours.".

Zero misspellings are on record for one of these days in our index, since its letter pattern doesn't lend itself to common typo substitutions. This headword has no recorded confusable partner, since its spelling is unusual enough that it doesn't cluster with a lookalike.

No documented word history exists for this headword, so its spelling is best read as a straightforward mapping from sound to letter. The correct French form is one of these days, spelled O-N-E- -O-F- -T-H-E-S-E- -D-A-Y-S.

Definition

  1. 1
    À l’occasion, un de ces quatre, un de ces jours.

Synonyms

one day

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 "one of these days"?
"one of these days" is spelled O-N-E- -O-F- -T-H-E-S-E- -D-A-Y-S. The IPA pronunciation is \ˌwʌn ɒv ˈðiːz ˌdeɪz\.
What does "one of these days" mean?
As an adverb, "one of these days" means: À l’occasion, un de ces quatre, un de ces jours.
How do you pronounce "one of these days"?
The IPA (International Phonetic Alphabet) transcription for "one of these days" is \ˌwʌn ɒv ˈðiːz ˌdeɪz\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "one of these days" come from?
"one of these days" 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 “one of these days”

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

  • The one correct French spelling is O-N-E- -O-F- -T-H-E-S-E- -D-A-Y-S - every other letter order is a misspelling in standard orthography.
  • Say it as \ˌwʌn ɒv ˈðiːz ˌdeɪz\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • 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