altavsATRTell them apart

Quick tell: alta is a noun, ATR is an abbrev, so they fill different roles in a sentence.

Which to use

“alta” is a noun and “ATR” is an abbrev - they look or sound alike but fill different roles in a sentence.

#667
“alta” frequency rank
#37,441
“ATR” frequency rank
38108
confusion score

Side-by-Side Comparison

Feature alta ATR
Definition En los hospitales, orden informada al enfermo a quien se da por sano, para regresar a su vida normal. A Todo Ritmo.

Letter map: alta vs ATR

Shared letters muted; letters that set alta and ATR apart highlighted. Shared run: 2.

4 ch
alta
3 ch
ATR

Role in the sentence - alta and ATR

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: alta is anoun and ATRanabbrev. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 38108, derived from the frequency rank of both members and their visual similarity.

alta is recorded at frequency rank #667, classified as anoun, pronounced [ˈal̪t̪a]. ATR is at rank #37,441, tagged as anabbrev.

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 38108, this pair ranks #171,777 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of alta vs ATR

Shared letters: at. Private to "alta": l. Private to "ATR": r.

"alta" · 4 letters · shape VCCV  ·  "ATR" · 3 letters · shape VCC

Known mistypes of this pair

  • altaalat · allta · altta · atla

Frequently Asked Questions

Is swapping "alta" for "ATR" ever safe?
No - they are not even the same part of speech. "alta" is a noun and "ATR" an abbrev, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "alta" or "ATR" show up more?
"alta" is the more common of the two: it sits at frequency rank #667 in our Spanish list, against #37,441 for "ATR". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pair "alta" vs "ATR" is on the table, pick a follow-up below.

  • Full dictionary entry for "alta" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ATR" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #171,777 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "alta" and "ATR" also get mixed up with nearby pairs, the highest-scored neighbour is "anta vs ATR". 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 #171,777 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