acertar vs alertar, What's the Difference?

Which to use

“acertar” and “alertar” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#5,590
“acertar” frequency rank: #10,997
“alertar” frequency rank: 16587
confusion score

Side-by-Side Comparison

Feature	acertar	alertar
Definition	pôr acerto em	pôr em alerta

Where the spellings diverge

Shared letters are muted; the letters that actually set acertar and alertar apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.

7 ch

acertar

7 ch

alertar

Spelling & Dictionary Insight

A purely visual mix-up. acertar (/ɐ.sɨɾ.ˈtaɾ/) and alertar (/ɐ.lɨɾ.ˈtaɾ/) 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 a single letter - c in “acertar” becomes l in “alertar”. Our composite confusion score for this pair is 16587, derived from the frequency rank of both members and their visual similarity.

acertar is recorded at frequency rank #5,590, classified as averb, pronounced /ɐ.sɨɾ.ˈtaɾ/. alertar is at rank #10,997, tagged as averb, pronounced /ɐ.lɨɾ.ˈtaɾ/.

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 16587, this pair ranks #54,910 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of acertar vs alertar

Shared letters: aert. Private to "acertar": c. Private to "alertar": l.

"acertar" · 7 letters · shape VCVCCVC · "alertar" · 7 letters · shape VCVCCVC

Known mistypes of this pair

acertar ← accertar · aceratr · acerrtar · acertarr · acertra · acerttar · acetrar · acretar
alertar ← aelrtar · aleratr · alerrtar · alertarr · alertra · alerttar · allertar · alretar

Frequency comparison

acertar#5,590

alertar#10,997

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "acertar" and "alertar" be used interchangeably?

No. They are said differently (/ɐ.sɨɾ.ˈtaɾ/ versus /ɐ.lɨɾ.ˈtaɾ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "acertar" or "alertar"?

"acertar" is the more common of the two: it sits at frequency rank #5,590 in our Portuguese list, against #10,997 for "alertar". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering acertar vs alertar

The fastest way to pick the right one every time.

Read both glosses above and match the meaning you intend, only context separates this pair.
See each word in full, definition, IPA, etymology and its other confusables. Full “acertar” entry
Browse more pairs most likely to be confused. Most confusable