Which to use
“onto” is a preposition and “oth” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,768
- “onto” frequency rank
- #39,944
- “oth” frequency rank
- 41712
- confusion score
Side-by-Side Comparison
| Feature | onto | oth |
|---|---|---|
| Definition | Arriving upon or on top of (speaking of a physical or metaphorical movement). | Obsolete spelling of oath. |
Letter map: onto vs oth
Shared letters muted; letters that set onto and oth apart highlighted. Shared run: 2.
Role in the sentence - onto and oth
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: onto is apreposition and othanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 41712, derived from the frequency rank of both members and their visual similarity.
onto is recorded at frequency rank #1,768, classified as aprep, pronounced /ˈɒn.tuː/. oth is at rank #39,944, tagged as anoun.
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 41712, this pair ranks #255,769 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of onto vs oth
Shared letters: ot. Private to "onto": n. Private to "oth": h.
"onto" · 4 letters · shape VCCV · "oth" · 3 letters · shape VCC
Known mistypes of this pair
- onto ← noto · onnto · onot · ontto · otno
Frequently Asked Questions
Do "onto" and "oth" mean the same thing in a sentence?
Which is more common, "onto" or "oth"?
What to do next
You've compared "onto" and "oth". Here's where to go from here.
- Full dictionary entry for "onto" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "oth" - compare definitions side by side with the headword page. Word entry
- This pair ranks #255,769 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "onto" and "oth" also get mixed up with nearby pairs, the highest-scored neighbour is "omi vs oth". 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 #255,769 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.