ogvsonWhich spelling fits?

Quick tell: og is a conjunction, on is an abbrev, so they fill different roles in a sentence.

Which to use

“og” is a conjunction and “on” is an abbrev - they look or sound alike but fill different roles in a sentence.

#10,335
“og” frequency rank
#975
“on” frequency rank
11310
confusion score

Side-by-Side Comparison

Feature og on
Definition und online

Letter map: og vs on

Shared letters muted; letters that set og and on apart highlighted. Shared run: 1.

2 ch
og
2 ch
on

Role in the sentence - og and on

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: og is aconjunction and onanabbrev. On the page they differ by a single letter - g in “og” becomes n in “on”. Our composite confusion score for this pair is 11310, derived from the frequency rank of both members and their visual similarity.

og is recorded at frequency rank #10,335, classified as aconj, pronounced [ɔ]. on is at rank #975, tagged as anabbrev.

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 11310, this pair ranks #1,970,546 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of og vs on

Shared letters: o. Private to "og": g. Private to "on": n.

"og" · 2 letters · shape VC  ·  "on" · 2 letters · shape VC

Frequently Asked Questions

Is swapping "og" for "on" ever safe?
No - they are not even the same part of speech. "og" is a conjunction and "on" an abbrev, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "og" or "on"?
"on" is the more common of the two: it sits at frequency rank #975 in our German list, against #10,335 for "og". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Done with this confusable. These links stay specific to "og" and "on".

  • Full dictionary entry for "og" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "on" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,970,546 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "og" and "on" also get mixed up with nearby pairs, the highest-scored neighbour is "og vs OGH". Nearby pair

Confusion rank #1,970,546 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list