prolongavspropongoTell them apart

Which to use

“prolonga” and “propongo” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#28,520
“prolonga” frequency rank
#9,182
“propongo” frequency rank
37702
confusion score

Side-by-Side Comparison

Feature prolonga propongo
Definition Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del presente de indicativo de prolongar o de prolongarse. Primera persona del singular (yo) del presente de indicativo de proponer.

Where the eye mixes prolonga and propongo

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

8 ch
prolonga
8 ch
propongo

Visual trap between prolonga and propongo

A purely visual mix-up. prolonga ([pɾoˈlõŋga]) and propongo ([pɾoˈpõŋgo]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 37702, derived from the frequency rank of both members and their visual similarity.

prolonga is recorded at frequency rank #28,520, classified as averb, pronounced [pɾoˈlõŋga]. propongo is at rank #9,182, tagged as averb, pronounced [pɾoˈpõŋgo].

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 37702, this pair ranks #173,922 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of prolonga vs propongo

Shared letters: gnopr. Private to "prolonga": al. Private to "propongo": -.

"prolonga" · 8 letters · shape CCVCVCCV  ·  "propongo" · 8 letters · shape CCVCVCCV

Known mistypes of this pair

  • prolongaporlonga · pprolonga · prloonga · prollonga · prolnoga · prologna · prolonag · prolongga
  • propongoporpongo · ppropongo · proopngo · propnogo · propogno · proponggo · proponngo · proponog

Frequently Asked Questions

Do "prolonga" and "propongo" mean the same thing in a sentence?
No. They are said differently ([pɾoˈlõŋga] versus [pɾoˈpõŋgo]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "prolonga" vs "propongo" - which ranks higher?
"propongo" is the more common of the two: it sits at frequency rank #9,182 in our Spanish list, against #28,520 for "prolonga". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "prolonga" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "propongo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #173,922 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "prolonga" and "propongo" also get mixed up with nearby pairs, the highest-scored neighbour is "prolonga vs propongan". 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 #173,922 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