rigorvsríoWhich spelling fits?

Which to use

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

#9,725
“rigor” frequency rank
#698
“río” frequency rank
10423
confusion score

Side-by-Side Comparison

Feature rigor río
Definition Severidad excesiva. Corriente de agua de caudal importante que discurre por tierra desde un manantial, una masa de hielos o un lago.

Where the eye mixes rigor and río

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

5 ch
rigor
3 ch
río

Visual trap between rigor and río

A purely visual mix-up. rigor ([riˈɣ̞oɾ]) and río ([ˈrio]) 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 2 letter(s) in length. Our composite confusion score for this pair is 10423, derived from the frequency rank of both members and their visual similarity.

rigor is recorded at frequency rank #9,725, classified as anoun, pronounced [riˈɣ̞oɾ]. río is at rank #698, tagged as anoun, pronounced [ˈrio].

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 10423, this pair ranks #298,666 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of rigor vs río

Shared letters: or. Private to "rigor": gi. Private to "río": í.

"rigor" · 5 letters · shape CVCVC  ·  "río" · 3 letters · shape CVV

Known mistypes of this pair

  • rigorirgor · rgior · riggor · rigorr · rigro · riogr · rrigor

Frequently Asked Questions

Can "rigor" and "río" be used interchangeably?
No. They are said differently ([riˈɣ̞oɾ] versus [ˈrio]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "rigor" or "río" show up more?
"río" is the more common of the two: it sits at frequency rank #698 in our Spanish list, against #9,725 for "rigor". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "rigor" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "río" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #298,666 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "rigor" and "río" also get mixed up with nearby pairs, the highest-scored neighbour is "rigor vs rugir". 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 #298,666 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