aivsaipoConfusable pair

Quick tell: ai is a intj, aipo is a noun, so they fill different roles in a sentence.

Which to use

“ai” is an intj and “aipo” is a noun - they look or sound alike but fill different roles in a sentence.

#1,090
“ai” frequency rank
#44,191
“aipo” frequency rank
45281
confusion score

Side-by-Side Comparison

Feature ai aipo
Definition expressa dor física ou sentimental planta herbácea odorífena da família das Umbelíferas cultivada para fins culinários; seu nome científico é Apium graveolens

Where the eye mixes ai and aipo

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

2 ch
ai
4 ch
aipo

Why the eye confuses ai with aipo

These two trip readers on the page rather than in the ear: ai is /aj/ while aipo is /ˈaj.pu/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “ai” sits inside “aipo”, and the parts of speech differ too (intj vs noun), which is usually the fastest check. Our composite confusion score for this pair is 45281, derived from the frequency rank of both members and their visual similarity.

ai is recorded at frequency rank #1,090, classified as anintj, pronounced /aj/. aipo is at rank #44,191, tagged as anoun, pronounced /ˈaj.pu/.

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 45281, this pair ranks #20,123 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ai vs aipo

Shared letters: ai. Private to "ai": -. Private to "aipo": op.

"ai" · 2 letters · shape VV  ·  "aipo" · 4 letters · shape VVCV

Known mistypes of this pair

  • aipoaiop · aippo · apio · iapo

Frequently Asked Questions

Do "ai" and "aipo" mean the same thing in a sentence?
No - they are not even the same part of speech. "ai" is an intj and "aipo" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "ai" or "aipo" show up more?
"ai" is the more common of the two: it sits at frequency rank #1,090 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.

After this comparison

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

  • Full dictionary entry for "ai" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aipo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #20,123 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ai" and "aipo" 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 #20,123 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