hielovshuecoWhat's the difference?

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

Which to use

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

#3,187
“hielo” frequency rank
#6,910
“hueco” frequency rank
10097
confusion score

Side-by-Side Comparison

Feature hielo hueco
Definition Acción o efecto de helar o de helarse. Que tiene una cavidad, vacío, espacio no lleno en su interior.

Where the eye mixes hielo and hueco

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

5 ch
hielo
5 ch
hueco

Why the eye confuses hielo with hueco

These two trip readers on the page rather than in the ear: hielo is [ˈjelo] while hueco is [ˈ(ɣ̞)w̝eko]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 10097, derived from the frequency rank of both members and their visual similarity.

hielo is recorded at frequency rank #3,187, classified as anoun, pronounced [ˈjelo]. hueco is at rank #6,910, tagged as anadj, pronounced [ˈ(ɣ̞)w̝eko].

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 10097, this pair ranks #299,823 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of hielo vs hueco

Shared letters: eho. Private to "hielo": il. Private to "hueco": cu.

"hielo" · 5 letters · shape CVVCV  ·  "hueco" · 5 letters · shape CVVCV

Known mistypes of this pair

  • hieloheilo · hhielo · hiello · hieol · hileo · ihelo
  • huecoheuco · hhueco · huceo · huecco · hueoc · uheco

Frequently Asked Questions

Is swapping "hielo" for "hueco" ever safe?
No - they are not even the same part of speech. "hielo" is a noun and "hueco" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "hielo" or "hueco"?
"hielo" is the more common of the two: it sits at frequency rank #3,187 in our Spanish list, against #6,910 for "hueco". 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 "hielo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "hueco" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #299,823 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "hielo" and "hueco" also get mixed up with nearby pairs, the highest-scored neighbour is "hueco vs huey". 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 #299,823 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