naivsnuiConfusable pair

Which to use

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

#43,733
“nai” frequency rank
#48,561
“nui” frequency rank
92294
confusion score

Side-by-Side Comparison

Feature nai nui
Definition Madre. Grande

Where the eye mixes nai and nui

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. nai and nui follow the identical consonant-vowel pattern (CVV). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
nai
3 ch
nui

Visual trap between nai and nui

A purely visual mix-up. nai ([ˈna̠j]) and nui ([ˈnu.i]) 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 - a in “nai” becomes u in “nui”. Our composite confusion score for this pair is 92294, derived from the frequency rank of both members and their visual similarity.

nai is recorded at frequency rank #43,733, classified as anoun, pronounced [ˈna̠j]. nui is at rank #48,561, tagged as anoun, pronounced [ˈnu.i].

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 92294, this pair ranks #1,575 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of nai vs nui

Shared letters: in. Private to "nai": a. Private to "nui": u.

"nai" · 3 letters · shape CVV  ·  "nui" · 3 letters · shape CVV

Frequently Asked Questions

Do "nai" and "nui" mean the same thing in a sentence?
No. They are said differently ([ˈna̠j] versus [ˈnu.i]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "nai" or "nui"?
"nai" is the more common of the two: it sits at frequency rank #43,733 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.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "nai" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "nui" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,575 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "nai" and "nui" also get mixed up with nearby pairs, the highest-scored neighbour is "nox vs nui". Nearby pair

Confusion rank #1,575 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