1s

symbol

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

The verdict

“1s” is uncommon French (frequency #53,094 among 431 “1” headwords), classed as a symbol. The kind of spelling people second-guess.

#53,094
frequency rank, French
431
“1” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - 1ʳᵉ sous-couche électronique (et la seule) de la 1ʳᵉ couche électronique, pouvant contenir au plus 2 électrons.

Key facts for 1s
PropertyValue
Headword1s
LanguageFrench
Part of speechSymbol
Letters2
Frequency rank#53,094
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “1s” 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). 1s lands here:

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

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

Rare enough to double-check

1s is uncommon French at frequency #53,094 among 431 “1” headwords, classed as asymbol. Rarity is why readers land here mid-draft. Gloss: "1ʳᵉ sous-couche électronique (et la seule) de la 1ʳᵉ couche électronique, pouvant contenir au plus 2 électrons.".

Zero misspellings are on record for 1s in our index, a straightforward case of a spelling with little room for common typos. Our dataset records no confusable match here, which typically means the spelling is too distinctive to be mistaken for another word.

This entry carries no recorded etymology, so its spelling is best read as a straightforward mapping from sound to letter. The correct French form is 1s, spelled 1-S.

Definition

  1. 1
    1ʳᵉ sous-couche électronique (et la seule) de la 1ʳᵉ couche électronique, pouvant contenir au plus 2 électrons.

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 "1s"?
"1s" is spelled 1-S.
What does "1s" mean?
As a symbol, "1s" means: 1ʳᵉ sous-couche électronique (et la seule) de la 1ʳᵉ couche électronique, pouvant contenir au plus 2 électrons.
What language does "1s" come from?
"1s" 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 “1s”

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

  • The one correct French spelling is 1-S - every other letter order is a misspelling in standard orthography.
  • Browse more French words and confusable pairs in the same reference. French words

Other uncommon French words near this rank

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