ninevsninjaWhat's the difference?

Which to use

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

#36,708
“nine” frequency rank
#10,385
“ninja” frequency rank
47093
confusion score

Side-by-Side Comparison

Feature nine ninja
Definition Palabra clave radiofónica del ICAO y NATO para la cifra 9. Mercenario entrenado especialmente en formas no ortodoxas de hacer la guerra, en las que se incluía el asesinato, espionaje, sabotaje, reconocimiento y guerra de guerrillas, con el afán de desestabilizar al ejército enemigo, obtener información vital de la posición de sus tropas o lograr una ventaja importante que pudiera ser decisiva en el campo de batalla.

Where the eye mixes nine and ninja

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
nine
5 ch
ninja

Look-alike desk: nine vs ninja

A purely visual mix-up. nine ([ˈnai̯na]) and ninja ([ˈnĩɲʝa]) 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 1 letter(s) in length. Our composite confusion score for this pair is 47093, derived from the frequency rank of both members and their visual similarity.

nine is recorded at frequency rank #36,708, classified as anoun, pronounced [ˈnai̯na]. ninja is at rank #10,385, tagged as anoun, pronounced [ˈnĩɲʝa].

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 47093, this pair ranks #121,978 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of nine vs ninja

Shared letters: in. Private to "nine": e. Private to "ninja": aj.

"nine" · 4 letters · shape CVCV  ·  "ninja" · 5 letters · shape CVCCV

Known mistypes of this pair

  • nineinne · nien · ninne · nnie · nnine
  • ninjainnja · nijna · ninaj · ninjja · ninnja · nnija · nninja

Frequently Asked Questions

Is swapping "nine" for "ninja" ever safe?
No. They are said differently ([ˈnai̯na] versus [ˈnĩɲʝa]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "nine" vs "ninja" - which ranks higher?
"ninja" is the more common of the two: it sits at frequency rank #10,385 in our Spanish list, against #36,708 for "nine". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "nine" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ninja" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #121,978 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "nine" and "ninja" also get mixed up with nearby pairs, the highest-scored neighbour is "nine vs nome". 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 #121,978 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