então vs esto, What's the Difference?

Which to use

“então” is an adverb and “esto” is a noun - they look or sound alike but fill different roles in a sentence.

#120
“então” frequency rank: #22,970
“esto” frequency rank: 23090
confusion score

Side-by-Side Comparison

Feature	então	esto
Definition	naquele momento	agitação das águas do mar; maré; preamar

Letter map: então vs esto

Shared letters muted; letters that set então and esto apart highlighted. Shared run: 3. então runs 5 letters (VCCVV) against esto's 4 (VCCV) - the length gap alone is often enough to separate them once you know to check it.

5 ch

então

4 ch

esto

Grammar separator: então vs esto

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: então is anadverb and estoanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 23090, derived from the frequency rank of both members and their visual similarity.

então is recorded at frequency rank #120, classified as anadv, pronounced /ẽ.ˈtɐ̃w̃/. esto is at rank #22,970, tagged as anoun.

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 23090, this pair ranks #46,807 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of então vs esto

Shared letters: eot. Private to "então": nã. Private to "esto": s.

"então" · 5 letters · shape VCCVV · "esto" · 4 letters · shape VCCV

Known mistypes of this pair

esto ← esot · essto · estto · etso · seto

Frequently Asked Questions

Is swapping "então" for "esto" ever safe?

No - they are not even the same part of speech. "então" is an adverb and "esto" a noun, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "então" vs "esto" - which ranks higher?

"então" is the more common of the two: it sits at frequency rank #120 in our Portuguese list, against #22,970 for "esto". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "então" and "esto". Here's where to go from here.

Full dictionary entry for "então" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "esto" - compare definitions side by side with the headword page. Word entry
This pair ranks #46,807 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"então" and "esto" also get mixed up with nearby pairs, the highest-scored neighbour is "elio vs esto". 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 #46,807 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.