agovsaptWhat's the difference?

Quick tell: ago is a adverb, apt is an adjective, so they fill different roles in a sentence.

Which to use

“ago” is an adverb and “apt” is an adjective - they look or sound alike but fill different roles in a sentence.

#9,434
“ago” frequency rank
#41,338
“apt” frequency rank
50772
confusion score

Side-by-Side Comparison

Feature ago apt
Definition há, atrás – adj apto

Where the eye mixes ago and apt

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. ago (VCV) and apt (VCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
ago
3 ch
apt

Look-alike desk: ago vs apt

These two trip readers on the page rather than in the ear: ago is /əˈɡəʊ/ while apt is /æpt/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adverb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 50772, derived from the frequency rank of both members and their visual similarity.

ago is recorded at frequency rank #9,434, classified as anadv, pronounced /əˈɡəʊ/. apt is at rank #41,338, tagged as anadj, pronounced /æpt/.

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 50772, this pair ranks #14,186 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of ago vs apt

Shared letters: a. Private to "ago": go. Private to "apt": pt.

"ago" · 3 letters · shape VCV  ·  "apt" · 3 letters · shape VCC

Frequently Asked Questions

Can "ago" and "apt" be used interchangeably?
No - they are not even the same part of speech. "ago" is an adverb and "apt" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ago" vs "apt" - which ranks higher?
"ago" is the more common of the two: it sits at frequency rank #9,434 in our Portuguese list, against #41,338 for "apt". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "ago" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "apt" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #14,186 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ago" and "apt" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs apt". Nearby pair

Confusion rank #14,186 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