energíavsenérgicaWhat's the difference?

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

Which to use

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

#822
“energía” frequency rank
#25,625
“enérgica” frequency rank
26447
confusion score

Side-by-Side Comparison

Feature energía enérgica
Definition Es una magnitud física del tipo escalar que se manifiesta en diversas formas, se mide por la capacidad de una fuerza o de un sistema para realizar trabajo mecánico, sus principales unidades son: julios y kilowatts.hora (o kilovatio.hora) y su simbolo es: E. Forma del femenino de enérgico.

Where the eye mixes energía and enérgica

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. energía runs 7 letters (VCVCCVV) against enérgica's 8 (VCVCCVCV) - the length gap alone is often enough to separate them once you know to check it.

7 ch
energía
8 ch
enérgica

Look-alike desk: energía vs enérgica

These two trip readers on the page rather than in the ear: energía is [eneɾˈxia] while enérgica is [eˈneɾxika]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 26447, derived from the frequency rank of both members and their visual similarity.

energía is recorded at frequency rank #822, classified as anoun, pronounced [eneɾˈxia]. enérgica is at rank #25,625, tagged as anadj, pronounced [eˈneɾxika].

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 26447, this pair ranks #231,563 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of energía vs enérgica

Shared letters: aegnr. Private to "energía": í. Private to "enérgica": cié.

"energía" · 7 letters · shape VCVCCVV  ·  "enérgica" · 8 letters · shape VCVCCVCV

Frequently Asked Questions

Is swapping "energía" for "enérgica" ever safe?
No - they are not even the same part of speech. "energía" is a noun and "enérgica" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "energía" or "enérgica" show up more?
"energía" is the more common of the two: it sits at frequency rank #822 in our Spanish list, against #25,625 for "enérgica". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "energía" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "enérgica" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #231,563 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "energía" and "enérgica" also get mixed up with nearby pairs, the highest-scored neighbour is "enérgica vs enérgicos". Nearby pair

Confusion rank #231,563 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