aipovsarcoWhat's the difference?

Which to use

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

#44,191
“aipo” frequency rank
#4,287
“arco” frequency rank
48478
confusion score

Side-by-Side Comparison

Feature aipo arco
Definition planta herbácea odorífena da família das Umbelíferas cultivada para fins culinários; seu nome científico é Apium graveolens ente geométrico cuja principal característica é a curva

Where the eye mixes aipo and arco

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. aipo (VVCV) and arco (VCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
aipo
4 ch
arco

Visual trap between aipo and arco

A purely visual mix-up. aipo (/ˈaj.pu/) and arco (/ˈaɾ.ku/) 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 48478, derived from the frequency rank of both members and their visual similarity.

aipo is recorded at frequency rank #44,191, classified as anoun, pronounced /ˈaj.pu/. arco is at rank #4,287, tagged as anoun, pronounced /ˈaɾ.ku/.

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 48478, this pair ranks #16,677 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of aipo vs arco

Shared letters: ao. Private to "aipo": ip. Private to "arco": cr.

"aipo" · 4 letters · shape VVCV  ·  "arco" · 4 letters · shape VCCV

Known mistypes of this pair

  • aipo ← aiop · aippo · apio · iapo
  • arco ← arcco · aroc · arrco · raco

Frequently Asked Questions

Do "aipo" and "arco" mean the same thing in a sentence?
No. They are said differently (/ˈaj.pu/ versus /ˈaɾ.ku/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "aipo" or "arco"?
"arco" is the more common of the two: it sits at frequency rank #4,287 in our Portuguese list, against #44,191 for "aipo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Eye-level mix-up between "aipo" and "arco" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "aipo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "arco" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #16,677 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "aipo" and "arco" also get mixed up with nearby pairs, the highest-scored neighbour is "aipo vs apo". 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 #16,677 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list