NASAvsnosTell them apart

Quick tell: NASA is a name, nos is a determiner, so they fill different roles in a sentence.

Which to use

“NASA” is a name and “nos” is a determiner - they look or sound alike but fill different roles in a sentence.

#7,995
“NASA” frequency rank
#147
“nos” frequency rank
8142
confusion score

Side-by-Side Comparison

Feature NASA nos
Definition Agence spatiale américaine. Première personne du pluriel. Qui sont à nous. Plusieurs possesseurs et plusieurs objets.

Where the eye mixes NASA and nos

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
NASA
3 ch
nos

Visual trap between NASA and nos

These two trip readers on the page rather than in the ear: NASA is \na.za\ while nos is \no\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs determiner), which is usually the fastest check. Our composite confusion score for this pair is 8142, derived from the frequency rank of both members and their visual similarity.

NASA is recorded at frequency rank #7,995, classified as aname, pronounced \na.za\. nos is at rank #147, tagged as adet, pronounced \no\.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 8142, this pair ranks #420,980 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of NASA vs nos

Shared letters: ns. Private to "NASA": a. Private to "nos": o.

"NASA" · 4 letters · shape CVCV  ·  "nos" · 3 letters · shape CVC

Known mistypes of this pair

  • NASAansa · naas · nassa · nnasa · nsaa

Frequently Asked Questions

Is swapping "NASA" for "nos" ever safe?
No - they are not even the same part of speech. "NASA" is a name and "nos" a determiner, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "NASA" or "nos" show up more?
"nos" is the more common of the two: it sits at frequency rank #147 in our French list, against #7,995 for "NASA". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "NASA" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "nos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #420,980 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "NASA" and "nos" also get mixed up with nearby pairs, the highest-scored neighbour is "NASA vs nis". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #420,980 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list