náuticavsnáuticasConfusable pair

Quick tell: náutica is a noun, náuticas is an adjective, so they fill different roles in a sentence.

Which to use

“náutica” is a noun and “náuticas” is an adjective - they look or sound alike but fill different roles in a sentence.

#33,745
“náutica” frequency rank
#42,049
“náuticas” frequency rank
75794
confusion score

Side-by-Side Comparison

Feature náutica náuticas
Definition Ciencia y arte de conducir vehículos acuáticos. Forma del femenino plural de náutico.

Where the eye mixes náutica and náuticas

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. náutica runs 7 letters (CVVCVCV) against náuticas's 8 (CVVCVCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
náutica
8 ch
náuticas

Visual trap between náutica and náuticas

These two trip readers on the page rather than in the ear: náutica is [ˈnawt̪ika] while náuticas is [ˈnawt̪ikas]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “náutica” sits inside “náuticas”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 75794, derived from the frequency rank of both members and their visual similarity.

náutica is recorded at frequency rank #33,745, classified as anoun, pronounced [ˈnawt̪ika]. náuticas is at rank #42,049, tagged as anadj, pronounced [ˈnawt̪ikas].

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 75794, this pair ranks #18,898 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of náutica vs náuticas

Shared letters: acintuá. Private to "náutica": -. Private to "náuticas": s.

"náutica" · 7 letters · shape CVVCVCV  ·  "náuticas" · 8 letters · shape CVVCVCVC

Frequently Asked Questions

Can "náutica" and "náuticas" be used interchangeably?
No - they are not even the same part of speech. "náutica" is a noun and "náuticas" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "náutica" vs "náuticas" - which ranks higher?
"náutica" is the more common of the two: it sits at frequency rank #33,745 in our Spanish list, against #42,049 for "náuticas". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "náutica" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "náuticas" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #18,898 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "náutica" and "náuticas" also get mixed up with nearby pairs, the highest-scored neighbour is "náuticas vs náutico". Nearby pair

Confusion rank #18,898 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