nuivsnunWhich spelling fits?

Which to use

“nui” and “nun” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#48,561
“nui” frequency rank
#37,753
“nun” frequency rank
86314
confusion score

Side-by-Side Comparison

Feature nui nun
Definition Grande Decimocuarta letra del alfabeto hebreo

Where the eye mixes nui and nun

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. nui (CVV) and nun (CVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
nui
3 ch
nun

Visual trap between nui and nun

A purely visual mix-up. nui ([ˈnu.i]) and nun ([ˈnũn]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - i in “nui” becomes n in “nun”. Our composite confusion score for this pair is 86314, derived from the frequency rank of both members and their visual similarity.

nui is recorded at frequency rank #48,561, classified as anoun, pronounced [ˈnu.i]. nun is at rank #37,753, tagged as anoun, pronounced [ˈnũn].

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 86314, this pair ranks #5,385 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of nui vs nun

Shared letters: nu. Private to "nui": i. Private to "nun": -.

"nui" · 3 letters · shape CVV  ·  "nun" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "nui" for "nun" ever safe?
No. They are said differently ([ˈnu.i] versus [ˈnũn]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "nui" vs "nun" - which ranks higher?
"nun" is the more common of the two: it sits at frequency rank #37,753 in our Spanish list, against #48,561 for "nui". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "nui" and "nun" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "nui" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "nun" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #5,385 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "nui" and "nun" also get mixed up with nearby pairs, the highest-scored neighbour is "nox vs nui". Nearby pair

Confusion rank #5,385 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list