Which to use
“nova” is a noun and “NSA” is a name - they look or sound alike but fill different roles in a sentence.
- #13,018
- “nova” frequency rank
- #13,019
- “NSA” frequency rank
- 26037
- confusion score
Side-by-Side Comparison
| Feature | nova | NSA |
|---|---|---|
| Definition | Étoile qui devient extrêmement brillante pendant quelques jours par une explosion thermonucléaire sur la surface. | « Agence de sécurité nationale » américaine. |
Where the eye mixes nova and NSA
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: nova vs NSA
These two trip readers on the page rather than in the ear: nova is \nɔ.va\ while NSA is \ɛn.ɛs.a\. 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 (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 26037, derived from the frequency rank of both members and their visual similarity.
nova is recorded at frequency rank #13,018, classified as anoun, pronounced \nɔ.va\. NSA is at rank #13,019, tagged as aname, pronounced \ɛn.ɛs.a\.
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 26037, this pair ranks #337,477 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of nova vs NSA
Shared letters: an. Private to "nova": ov. Private to "NSA": s.
"nova" · 4 letters · shape CVCV · "NSA" · 3 letters · shape CCV
Known mistypes of this pair
- nova ← nnova · noav · novva · nvoa · onva
Frequently Asked Questions
Is swapping "nova" for "NSA" ever safe?
Which is more common, "nova" or "NSA"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "nova" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "NSA" - compare definitions side by side with the headword page. Word entry
- This pair ranks #337,477 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "nova" and "NSA" also get mixed up with nearby pairs, the highest-scored neighbour is "nop vs NSA". 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 #337,477 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.