Which to use
“thirds” and “triads” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #8,218
- “thirds” frequency rank
- #41,912
- “triads” frequency rank
- 50130
- confusion score
Side-by-Side Comparison
| Feature | thirds | triads |
|---|---|---|
| Definition | plural of third | plural of triad |
Where the eye mixes thirds and triads
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Look-alike desk: thirds vs triads
A purely visual mix-up. thirds (/θɜːdz/) and triads (/tɹaɪ.ædz/) 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 50130, derived from the frequency rank of both members and their visual similarity.
thirds is recorded at frequency rank #8,218, classified as anoun, pronounced /θɜːdz/. triads is at rank #41,912, tagged as anoun, pronounced /tɹaɪ.ædz/.
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 50130, this pair ranks #177,072 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of thirds vs triads
Shared letters: dirst. Private to "thirds": h. Private to "triads": a.
"thirds" · 6 letters · shape CCVCCC · "triads" · 6 letters · shape CCVVCC
Known mistypes of this pair
Frequently Asked Questions
Can "thirds" and "triads" be used interchangeably?
Which is more common, "thirds" or "triads"?
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 "thirds" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "triads" - compare definitions side by side with the headword page. Word entry
- This pair ranks #177,072 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "thirds" and "triads" also get mixed up with nearby pairs, the highest-scored neighbour is "triads vs triage". 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 #177,072 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.