SmogvssoTell them apart

Quick tell: Smog is a noun, so is a conjunction, so they fill different roles in a sentence.

Which to use

“Smog” is a noun and “so” is a conjunction - they look or sound alike but fill different roles in a sentence.

#47,734
“Smog” frequency rank
#28
“so” frequency rank
47762
confusion score

Side-by-Side Comparison

Feature Smog so
Definition hohe Konzentration von Schadstoffen in der Luft, wie sie sich über dicht besiedelten Räumen bilden kann drückt einen Vergleich aus

Where the eye mixes Smog and so

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
Smog
2 ch
so

Look-alike desk: Smog vs so

These two trip readers on the page rather than in the ear: Smog is [smɔk] while so is [zoː]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs conjunction), which is usually the fastest check. Our composite confusion score for this pair is 47762, derived from the frequency rank of both members and their visual similarity.

Smog is recorded at frequency rank #47,734, classified as anoun, pronounced [smɔk]. so is at rank #28, tagged as aconj, pronounced [zoː].

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 47762, this pair ranks #1,272,958 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Smog vs so

Shared letters: os. Private to "Smog": gm. Private to "so": -.

"Smog" · 4 letters · shape CCVC  ·  "so" · 2 letters · shape CV

Known mistypes of this pair

  • Smogmsog · smgo · smmog · smogg · somg · ssmog

Frequently Asked Questions

Is swapping "Smog" for "so" ever safe?
No - they are not even the same part of speech. "Smog" is a noun and "so" a conjunction, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "Smog" or "so" show up more?
"so" is the more common of the two: it sits at frequency rank #28 in our German list, against #47,734 for "Smog". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "Smog" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "so" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,272,958 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Smog" and "so" also get mixed up with nearby pairs, the highest-scored neighbour is "seg vs Smog". 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 #1,272,958 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