Which to use
“pesky” is an adjective and “pesto” is a noun - they look or sound alike but fill different roles in a sentence.
- #25,528
- “pesky” frequency rank
- #33,789
- “pesto” frequency rank
- 59317
- confusion score
Side-by-Side Comparison
| Feature | pesky | pesto |
|---|---|---|
| Definition | Annoying, troublesome, irritating (usually of an animal or child). | A sauce, especially for pasta, originating from the Genoa region in Italy, made from basil, garlic, pine nuts, olive oil and cheese (usually pecorino). |
Where the eye mixes pesky and pesto
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. pesky and pesto follow the identical consonant-vowel pattern (CVCCV). Same shape at a glance is often the real trap, independent of shared letters.
Look-alike desk: pesky vs pesto
These two trip readers on the page rather than in the ear: pesky is /ˈpɛski/ while pesto is /ˈpɛstoʊ/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 59317, derived from the frequency rank of both members and their visual similarity.
pesky is recorded at frequency rank #25,528, classified as anadj, pronounced /ˈpɛski/. pesto is at rank #33,789, tagged as anoun, pronounced /ˈpɛstoʊ/.
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 59317, this pair ranks #106,981 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of pesky vs pesto
Shared letters: eps. Private to "pesky": ky. Private to "pesto": ot.
"pesky" · 5 letters · shape CVCCV · "pesto" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Can "pesky" and "pesto" be used interchangeably?
Frequency check: "pesky" vs "pesto" - which ranks higher?
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 "pesky" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "pesto" - compare definitions side by side with the headword page. Word entry
- This pair ranks #106,981 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "pesky" and "pesto" also get mixed up with nearby pairs, the highest-scored neighbour is "pester vs pesto". 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 #106,981 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.